—George Jacob Holyoake, Public Speaking and Debate.
The very name of logic3 is awesome4 to most young speakers, but so soon as they come to realize that its processes, even when most intricate, are merely technical statements of the truths enforced by common sense, it will lose its terrors. In fact, logic[25] is a fascinating subject, well worth the public speaker's study, for it explains the principles that govern the use of argument and proof.
Argumentation is the process of producing conviction by means of reasoning. Other ways of producing conviction there are, notably6 suggestion, as we have just shown, but no means is so high, so worthy7 of respect, as the adducing of sound reasons in support of a contention8.
Since more than one side of a subject must be considered before we can claim to have deliberated upon it fairly, we ought to think of argumentation under two aspects: building up an argument, and tearing down an argument; that is, you must not only examine into the stability of your structure of argument so that it may both support the proposition you intend to probe and yet be so sound that it cannot be overthrown9 by opponents, but you must also be so keen to detect defects in argument that you will be able to demolish10 the weaker arguments of those who argue against you.
We can consider argumentation only generally, leaving minute and technical discussions to such excellent works as George P. Baker's "The Principles of Argumentation," and George Jacob Holyoake's "Public Speaking and Debate." Any good college rhetoric11 also will give help on the subject, especially the works of John Franklin Genung and Adams Sherman Hill. The student is urged to familiarize himself with at least one of these texts.
The following series of questions will, it is hoped, serve a triple purpose: that of suggesting the forms of proof together with the ways in which they may be used; that of helping12 the speaker to test the strength of his arguments; and that of enabling the speaker to attack his opponent's arguments with both keenness and justice.
TESTING AN ARGUMENT
I. The Question Under Discussion
1. Is it clearly stated?
(a) Do the terms of statement mean the same to each
disputant? (For example, the meaning of the term "gentleman" may not
be mutually agreed upon.)
(b) Is confusion likely to arise as to its purpose?
2. Is it fairly stated?
(a) Does it include enough?
(b) Does it include too much?
(c) Is it stated so as to contain a trap?
3. Is it a debatable question?
4. What is the pivotal point in the whole question?
5. What are the subordinate points?
II. The Evidence
1. The witnesses as to facts
subject at issue?
(b) Is he mentally competent?
(d) Is he in a position to know the facts? Is he an
eye-witness?
(e) Is he a willing witness?
(g) Is his testimony corroborated16?
(h) Is his testimony contrary to well-known facts or general
principles?
(i) Is it probable?
2. The authorities cited as evidence
(a) Is the authority well-recognized as such?
(b) What constitutes him an authority?
(c) Is his interest in the case an impartial one?
(d) Does he state his opinion positively17 and clearly?
(e) Are the non-personal authorities cited (books, etc.)
reliable and unprejudiced?
3. The facts adduced as evidence
(a) Are they sufficient in number to constitute proof?
(b) Are they weighty enough in character?
(c) Are they in harmony with reason?
(e) Are they admitted, doubted, or disputed?
4. The principles adduced as evidence
(b) Are they truths of general experience?
(c) Are they truths of special experience?
(d) Are they truths arrived at by experiment?
Were such experiments special or general?
III. The Reasoning
1. Inductions23
(a) Are the facts numerous enough to warrant accepting the
generalization25 as being conclusive?
(b) Do the facts agree only when considered in the
light of this explanation as a conclusion?
(c) Have you overlooked any contradictory facts?
(d) Are the contradictory facts sufficiently26 explained when
this inference is accepted as true?
(e) Are all contrary positions shown to be relatively27
untenable?
2. Deductions28
(a) Is the law or general principle a well-established one?
(b) Does the law or principle clearly include the fact you
wish to deduce from it, or have you strained the inference?
(c) Does the importance of the law or principle warrant so
important an inference?
3. Parallel cases
(a) Are the cases parallel at enough points to warrant an
inference of similar cause or effect?
(b) Are the cases parallel at the vital point at issue?
(c) Has the parallelism been strained?
(d) Are there no other parallels that would point to a
stronger contrary conclusion?
4. Inferences
(a) Are the antecedent conditions such as would make the
allegation probable? (Character and opportunities of the accused, for
example.)
(b) Are the signs that point to the inference either clear
or numerous enough to warrant its acceptance as fact?
(c) Are the signs cumulative30, and agreeable one with the other?
(d) Could the signs be made to point to a contrary conclusion?
5. Syllogisms
(a) Have any steps been omitted in the syllogisms?
filling out the syllogisms.
(b) Have you been guilty of stating a conclusion that really
does not follow? (A non sequitur.)
(Reductio ad absurdum.)
QUESTIONS AND EXERCISES
1. Show why an unsupported assertion is not an argument.
3. What inferences may justly be made from the following?
During the Boer War it was found that the average Englishman did not measure up to the standards of recruiting and the average soldier in the field manifested a low plane of vitality35 and endurance. Parliament, alarmed by the disastrous36 consequences, instituted an investigation37. The commission appointed brought in a finding that alcoholic38 poisoning was the great cause of the national degeneracy. The investigations39 of the commission have been supplemented by investigations of scientific bodies and individual scientists, all arriving at the same conclusion. As a consequence, the British Government has placarded the streets of a hundred cities with billboards40 setting forth41 the destructive and degenerating42 nature of alcohol and appealing to the people in the name of the nation to desist from drinking alcoholic beverages43. Under efforts directed by the Government the British Army is fast becoming an army of total abstainers.
The Governments of continental44 Europe followed the lead of the British Government. The French Government has placarded France with appeals to the people, attributing the decline of the birth rate and increase in the death rate to the widespread use of alcoholic beverages. The experience of the German Government has been the same. The German Emperor has clearly stated that leadership in war and in peace will be held by the nation that roots out alcohol. He has undertaken to eliminate even the drinking of beer, so far as possible, from the German Army and Navy.—Richmond Pearson Hobson, Before the U.S. Congress.
4. Since the burden of proof lies on him who attacks a position, or argues for a change in affairs, how would his opponent be likely to conduct his own part of a debate?
5. Define (a) syllogism; (b) rebuttal; (c) "begging the question;" (d) premise45; (e) rejoinder; (f) sur-rejoinder; (g) dilemma46; (h) induction24; (i) deduction; (j) a priori; (k) a posteriori; (l) inference.
Men ought not to smoke tobacco, because to do so is contrary to best medical opinion. My physician has expressly condemned48 the practise, and is a medical authority in this country.
7. Criticise this reasoning:
Men ought not to swear profanely49, because it is wrong. It is wrong for the reason that it is contrary to the Moral Law, and it is contrary to the Moral Law because it is contrary to the Scriptures50. It is contrary to the Scriptures because it is contrary to the will of God, and we know it is contrary to God's will because it is wrong.
8. Criticise this syllogism:
MAJOR PREMISE: All men who have no cares are happy.
CONCLUSION: Therefore, slovenly men are happy.
All is not gold that glitters.
All cold may be expelled by fire.
10. Criticise the following fallacy (non sequitur):
MAJOR PREMISE: All strong men admire strength.
MINOR PREMISE: This man is not strong.
CONCLUSION: Therefore this man does not admire strength.
11. Criticise these statements:
Sleep is beneficial on account of its soporific qualities.
Fiske's histories are authentic54 because they contain accurate accounts of American history, and we know that they are true accounts for otherwise they would not be contained in these authentic works.
12. What do you understand from the terms "reasoning from effect to cause" and "from cause to effect?" Give examples.
13. What principle did Richmond Pearson Hobson employ in the following?
What is the police power of the States? The police power of the Federal Government or the State—any sovereign State—has been defined. Take the definition given by Blackstone, which is:
The due regulation and domestic order of the Kingdom, whereby the inhabitants of a State, like members of a well-governed family, are bound to conform their general behavior to the rules of propriety55, of neighborhood and good manners, and to be decent, industrious56, and inoffensive in their respective stations.
Would this amendment57 interfere58 with any State carrying on the promotion59 of its domestic order?
Or you can take the definition in another form, in which it is given by Mr. Tiedeman, when he says:
The object of government is to impose that degree of restraint upon human actions which is necessary to a uniform, reasonable enjoyment60 of private rights. The power of the government to impose this restraint is called the police power.
Judge Cooley says of the liquor traffic:
The business of manufacturing and selling liquor is one that affects the public interests in many ways and leads to many disorders61. It has a tendency to increase pauperism62 and crime. It renders a large force of peace officers essential, and it adds to the expense of the courts and of nearly all branches of civil administration.
Licenses64 may be properly required in the pursuit of many professions and avocations66, which require peculiar68 skill and training or supervision69 for the public welfare. The profession or avocation67 is open to all alike who will prepare themselves with the requisite70 qualifications or give the requisite security for preserving public order. This is in harmony with the general proposition that the ordinary pursuits of life, forming the greater per cent of the industrial pursuits, are and ought to be free and open to all, subject only to such general regulations, applying equally to all, as the general good may demand.
All such regulations are entirely71 competent for the legislature to make and are in no sense an abridgment72 of the equal rights of citizens. But a license65 to do that which is odious73 and against common right is necessarily an outrage74 upon the equal rights of citizens.
14. What method did Jesus employ in the following:
Ye are the salt of the earth; but if the salt have lost his savour, wherewith shall it be salted? It is thenceforth good for nothing but to be cast out, and to be trodden under foot of men.
Behold75 the fowls76 of the air; for they sow not, neither do they reap nor gather into barns; yet your heavenly Father feedeth them. Are ye not much better than they?
And why take ye thought for raiment? Consider the lilies of the field; how they grow; they toil77 not, neither do they spin; And yet I say unto you, that even Solomon in all his glory was not arrayed like one of these. Wherefore, if God so clothe the grass of the field, which today is, and tomorrow is cast into the oven, shall he not much more clothe you, O ye of little faith?
Or what man is there of you, whom if his son ask bread, will he give him a stone? Or if he ask a fish, will he give him a serpent? If ye then, being evil, know how to give good gifts unto your children, how much more shall your Father which is in heaven give good things to them that ask him?
15. Make five original syllogisms[26] on the following models:
Major Premise: He who administers arsenic78 gives poison. Minor Premise: The prisoner administered arsenic to the victim. Conclusion: Therefore the prisoner is a poisoner.
Major Premise: All dogs are quadrupeds. Minor Premise: This animal is a biped. Conclusion: Therefore this animal is not a dog.
16. Prepare either the positive or the negative side of the following question for debate: The recall of judges should be adopted as a national principle.
17. Is this question debatable? Benedict Arnold was a gentleman. Give reasons for your answer.
18. Criticise any street or dinner-table argument you have heard recently.
19. Test the reasoning of any of the speeches given in this volume.
20. Make a short speech arguing in favor of instruction in public speaking in the public evening schools.
21. (a) Clip a newspaper editorial in which the reasoning is weak. (b) Criticise it. (c) Correct it.
22. Make a list of three subjects for debate, selected from the monthly magazines.
23. Do the same from the newspapers.
24. Choosing your own question and side, prepare a brief suitable for a ten-minute debating argument. The following models of briefs may help you:
DEBATE
Resolved: That armed intervention79 is not justifiable80 on the part of any nation to collect, on behalf of private individuals, financial claims against any American nation.[27]
Brief of Affirmative Argument
First speaker—Chafee
Armed intervention for collection of private claims from any American
nation is not justifiable, for
1. It is wrong in principle, because
(a) It violates the fundamental principles of international law for a
very slight cause
(b) It is contrary to the proper function of the State, and
(c) It is contrary to justice, since claims are exaggerated.
Second speaker—Hurley
2. It is disastrous in its results, because
(b) It tends to increase the burden of debt in the South American
republics
(c) It encourages a waste of the world's capital, and
(d) It disturbs peace and stability in South America.
Third speaker—Bruce
3. It is unnecessary to collect in this way, because
(a) Peaceful methods have succeeded
(b) If these should fail, claims should be settled by The Hague
Tribunal
(c) The fault has always been with European States when force has been
used, and
(d) In any case, force should not be used, for it counteracts82 the
movement towards peace.
Brief of Negative Argument
First speaker—Branch
Armed intervention for the collection of private financial claims
against some American States is justifiable, for
1. When other means of collection have failed, armed intervention
against any nation is essentially83 proper, because
(a) Justice should always be secured
(c) Intervention for this purpose is sanctioned by the best
international authority
submission86 of claims to The Hague Tribunal before intervening.
Second speaker—Stone
2. Armed intervention is necessary to secure justice in tropical
America, for
(b) They insist that the final decision about claims shall rest with
(c) They refuse to arbitrate sometimes.
Third speaker—Dennett
3. Armed intervention is beneficial in its results, because
(a) It inspires responsibility
(b) In administering custom houses it removes temptation to revolutions
(c) It gives confidence to desirable capital.
Among others, the following books were used in the preparation of the arguments:
N. "The Monroe Doctrine," by T.B. Edgington. Chapters 22-28.
"Digest of International Law," by J.B. Moore. Report of Penfield of
proceedings89 before Hague Tribunal in 1903.
"Statesman's Year Book" (for statistics).
A. Minister Drago's appeal to the United States, in Foreign
Relations of United States, 1903.
President Roosevelt's Message, 1905, pp. 33-37.
And articles in the following magazines (among many others):
"Journal of Political Economy," December, 1906.
"Atlantic Monthly," October, 1906.
"North American Review," Vol. 183, p. 602.
All of these contain material valuable for both sides, except those marked "N" and "A," which are useful only for the negative and affirmative, respectively.
Note:—Practise in debating is most helpful to the public speaker, but if possible each debate should be under the supervision of some person whose word will be respected, so that the debaters might show regard for courtesy, accuracy, effective reasoning, and the necessity for careful preparation. The Appendix contains a list of questions for debate.
25. Are the following points well considered?
The Inheritance Tax is Not a Good Social Reform Measure
A. Does not strike at the root of the evil
1. Fortunes not a menace in themselves A fortune of $500,000 may
be a greater social evil than one of $500,000,000
2. Danger of wealth depends on its wrong accumulation and use
4. Laws aimed at unjust accumulation and use of wealth furnish the
true remedy.
1. Low rates are evaded
2. Rate must be high to result in distribution of great fortunes.
26. Class exercises: Mock Trial for (a) some serious political offense93; (b) a burlesque94 offense.
点击收听单词发音
1 equivocates | |
n.使用模棱两可的话隐瞒真相( equivocate的名词复数 )v.使用模棱两可的话隐瞒真相( equivocate的第三人称单数 ) | |
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2 intelligible | |
adj.可理解的,明白易懂的,清楚的 | |
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3 logic | |
n.逻辑(学);逻辑性 | |
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4 awesome | |
adj.令人惊叹的,难得吓人的,很好的 | |
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5 mere | |
adj.纯粹的;仅仅,只不过 | |
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6 notably | |
adv.值得注意地,显著地,尤其地,特别地 | |
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7 worthy | |
adj.(of)值得的,配得上的;有价值的 | |
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8 contention | |
n.争论,争辩,论战;论点,主张 | |
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9 overthrown | |
adj. 打翻的,推倒的,倾覆的 动词overthrow的过去分词 | |
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10 demolish | |
v.拆毁(建筑物等),推翻(计划、制度等) | |
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11 rhetoric | |
n.修辞学,浮夸之言语 | |
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12 helping | |
n.食物的一份&adj.帮助人的,辅助的 | |
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13 impartial | |
adj.(in,to)公正的,无偏见的 | |
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14 credible | |
adj.可信任的,可靠的 | |
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15 testimony | |
n.证词;见证,证明 | |
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16 corroborated | |
v.证实,支持(某种说法、信仰、理论等)( corroborate的过去式 ) | |
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17 positively | |
adv.明确地,断然,坚决地;实在,确实 | |
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18 harmonious | |
adj.和睦的,调和的,和谐的,协调的 | |
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19 contradictory | |
adj.反驳的,反对的,抗辩的;n.正反对,矛盾对立 | |
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20 axiomatic | |
adj.不需证明的,不言自明的 | |
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21 authoritative | |
adj.有权威的,可相信的;命令式的;官方的 | |
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22 conclusive | |
adj.最后的,结论的;确凿的,消除怀疑的 | |
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23 inductions | |
归纳(法)( induction的名词复数 ); (电或磁的)感应; 就职; 吸入 | |
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24 induction | |
n.感应,感应现象 | |
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25 generalization | |
n.普遍性,一般性,概括 | |
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26 sufficiently | |
adv.足够地,充分地 | |
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27 relatively | |
adv.比较...地,相对地 | |
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28 deductions | |
扣除( deduction的名词复数 ); 结论; 扣除的量; 推演 | |
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29 deduction | |
n.减除,扣除,减除额;推论,推理,演绎 | |
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30 cumulative | |
adj.累积的,渐增的 | |
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31 syllogism | |
n.演绎法,三段论法 | |
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32 absurdity | |
n.荒谬,愚蠢;谬论 | |
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33 illustrate | |
v.举例说明,阐明;图解,加插图 | |
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34 irrelevant | |
adj.不恰当的,无关系的,不相干的 | |
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35 vitality | |
n.活力,生命力,效力 | |
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36 disastrous | |
adj.灾难性的,造成灾害的;极坏的,很糟的 | |
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37 investigation | |
n.调查,调查研究 | |
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38 alcoholic | |
adj.(含)酒精的,由酒精引起的;n.酗酒者 | |
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39 investigations | |
(正式的)调查( investigation的名词复数 ); 侦查; 科学研究; 学术研究 | |
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40 billboards | |
n.广告牌( billboard的名词复数 ) | |
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41 forth | |
adv.向前;向外,往外 | |
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42 degenerating | |
衰退,堕落,退化( degenerate的现在分词 ) | |
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43 beverages | |
n.饮料( beverage的名词复数 ) | |
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44 continental | |
adj.大陆的,大陆性的,欧洲大陆的 | |
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45 premise | |
n.前提;v.提论,预述 | |
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46 dilemma | |
n.困境,进退两难的局面 | |
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47 criticise | |
v.批评,评论;非难 | |
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48 condemned | |
adj. 被责难的, 被宣告有罪的 动词condemn的过去式和过去分词 | |
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49 profanely | |
adv.渎神地,凡俗地 | |
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50 scriptures | |
经文,圣典( scripture的名词复数 ); 经典 | |
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51 minor | |
adj.较小(少)的,较次要的;n.辅修学科;vi.辅修 | |
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52 slovenly | |
adj.懒散的,不整齐的,邋遢的 | |
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53 premises | |
n.建筑物,房屋 | |
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54 authentic | |
a.真的,真正的;可靠的,可信的,有根据的 | |
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55 propriety | |
n.正当行为;正当;适当 | |
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56 industrious | |
adj.勤劳的,刻苦的,奋发的 | |
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57 amendment | |
n.改正,修正,改善,修正案 | |
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58 interfere | |
v.(in)干涉,干预;(with)妨碍,打扰 | |
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59 promotion | |
n.提升,晋级;促销,宣传 | |
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60 enjoyment | |
n.乐趣;享有;享用 | |
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61 disorders | |
n.混乱( disorder的名词复数 );凌乱;骚乱;(身心、机能)失调 | |
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62 pauperism | |
n.有被救济的资格,贫困 | |
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63 supreme | |
adj.极度的,最重要的;至高的,最高的 | |
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64 licenses | |
n.执照( license的名词复数 )v.批准,许可,颁发执照( license的第三人称单数 ) | |
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65 license | |
n.执照,许可证,特许;v.许可,特许 | |
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66 avocations | |
n.业余爱好,嗜好( avocation的名词复数 );职业 | |
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67 avocation | |
n.副业,业余爱好 | |
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68 peculiar | |
adj.古怪的,异常的;特殊的,特有的 | |
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69 supervision | |
n.监督,管理 | |
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70 requisite | |
adj.需要的,必不可少的;n.必需品 | |
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71 entirely | |
ad.全部地,完整地;完全地,彻底地 | |
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72 abridgment | |
n.删节,节本 | |
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73 odious | |
adj.可憎的,讨厌的 | |
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74 outrage | |
n.暴行,侮辱,愤怒;vt.凌辱,激怒 | |
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75 behold | |
v.看,注视,看到 | |
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76 fowls | |
鸟( fowl的名词复数 ); 禽肉; 既不是这; 非驴非马 | |
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77 toil | |
vi.辛劳工作,艰难地行动;n.苦工,难事 | |
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78 arsenic | |
n.砒霜,砷;adj.砷的 | |
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79 intervention | |
n.介入,干涉,干预 | |
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80 justifiable | |
adj.有理由的,无可非议的 | |
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81 incurs | |
遭受,招致,引起( incur的第三人称单数 ) | |
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82 counteracts | |
对抗,抵消( counteract的第三人称单数 ) | |
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83 essentially | |
adv.本质上,实质上,基本上 | |
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84 premium | |
n.加付款;赠品;adj.高级的;售价高的 | |
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85 undue | |
adj.过分的;不适当的;未到期的 | |
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86 submission | |
n.服从,投降;温顺,谦虚;提出 | |
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87 repudiate | |
v.拒绝,拒付,拒绝履行 | |
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88 corrupt | |
v.贿赂,收买;adj.腐败的,贪污的 | |
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89 proceedings | |
n.进程,过程,议程;诉讼(程序);公报 | |
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90 rebates | |
n.退还款( rebate的名词复数 );回扣;返还(退还的部份货价);折扣 | |
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91 bribery | |
n.贿络行为,行贿,受贿 | |
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92 evaded | |
逃避( evade的过去式和过去分词 ); 避开; 回避; 想不出 | |
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93 offense | |
n.犯规,违法行为;冒犯,得罪 | |
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94 burlesque | |
v.嘲弄,戏仿;n.嘲弄,取笑,滑稽模仿 | |
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