It is clear the word utility has not for him the sense men of affairs give it, and following them most of our contemporaries. Little cares he for industrial applications, for the marvels1 of electricity or of automobilism, which he regards rather as obstacles to moral progress; utility for him is solely2 what can make man better.
For my part, it need scarce be said, I could never be content with either the one or the other ideal; I want neither that plutocracy3 grasping and mean, nor that democracy goody and mediocre4, occupied solely in turning the other cheek, where would dwell sages5 without curiosity, who, shunning6 excess, would not die of disease, but would surely die of ennui7. But that is a matter of taste and is not what I wish to discuss.
The question nevertheless remains8 and should fix our attention; if our choice can only be determined9 by caprice or by immediate10 utility, there can be no science for its own sake, and consequently no science. But is that true? That a choice must be made is incontestable; whatever be our activity, facts go quicker than we, and we can not catch them; while the scientist discovers one fact, there happen milliards of milliards in a cubic millimeter of his body. To wish to comprise nature in science would be to want to put the whole into the part.
But scientists believe there is a hierarchy11 of facts and that among them may be made a judicious12 choice. They are right, since otherwise there would be no science, yet science exists. One need only open the eyes to see that the conquests of industry which have enriched so many practical men would never have seen the light, if these practical men alone had existed and if they had not been preceded by unselfish devotees who died poor, who never thought of utility, and yet had a guide far other than caprice.
As Mach says, these devotees have spared their successors the trouble of thinking. Those who might have worked solely in view of an immediate application would have left nothing behind them, and, in face of a new need, all must have been begun over again. Now most men do not love to think, and this is perhaps fortunate when instinct guides them, for most often, when they pursue an aim which is immediate and ever the same, instinct guides them better than reason would guide a pure intelligence. But instinct is routine, and if thought did not fecundate it, it would no more progress in man than in the bee or ant. It is needful then to think for those who love not thinking, and, as they are numerous, it is needful that each of our thoughts be as often useful as possible, and this is why a law will be the more precious the more general it is.
This shows us how we should choose: the most interesting facts are those which may serve many times; these are the facts which have a chance of coming up again. We have been so fortunate as to be born in a world where there are such. Suppose that instead of 60 chemical elements there were 60 milliards of them, that they were not some common, the others rare, but that they were uniformly distributed. Then, every time we picked up a new pebble13 there would be great probability of its being formed of some unknown substance; all that we knew of other pebbles14 would be worthless for it; before each new object we should be as the new-born babe; like it we could only obey our caprices or our needs. Biologists would be just as much at a loss if there were only individuals and no species and if heredity did not make sons like their fathers.
In such a world there would be no science; perhaps thought and even life would be impossible, since evolution could not there develop the preservational instincts. Happily it is not so; like all good fortune to which we are accustomed, this is not appreciated at its true worth.
Which then are the facts likely to reappear? They are first the simple facts. It is clear that in a complex fact a thousand circumstances are united by chance, and that only a chance still much less probable could reunite them anew. But are there any simple facts? And if there are, how recognize them? What assurance is there that a thing we think simple does not hide a dreadful complexity15? All we can say is that we ought to prefer the facts which seem simple to those where our crude eye discerns unlike elements. And then one of two things: either this simplicity16 is real, or else the elements are so intimately mingled17 as not to be distinguishable. In the first case there is chance of our meeting anew this same simple fact, either in all its purity or entering itself as element in a complex manifold. In the second case this intimate mixture has likewise more chances of recurring18 than a heterogeneous19 assemblage; chance knows how to mix, it knows not how to disentangle, and to make with multiple elements a well-ordered edifice20 in which something is distinguishable, it must be made expressly. The facts which appear simple, even if they are not so, will therefore be more easily revived by chance. This it is which justifies21 the method instinctively23 adopted by the scientist, and what justifies it still better, perhaps, is that oft-recurring facts appear to us simple, precisely24 because we are used to them.
But where is the simple fact? Scientists have been seeking it in the two extremes, in the infinitely25 great and in the infinitely small. The astronomer26 has found it because the distances of the stars are immense, so great that each of them appears but as a point, so great that the qualitative27 differences are effaced28, and because a point is simpler than a body which has form and qualities. The physicist29 on the other hand has sought the elementary phenomenon in fictively cutting up bodies into infinitesimal cubes, because the conditions of the problem, which undergo slow and continuous variation in passing from one point of the body to another, may be regarded as constant in the interior of each of these little cubes. In the same way the biologist has been instinctively led to regard the cell as more interesting than the whole animal, and the outcome has shown his wisdom, since cells belonging to organisms the most different are more alike, for the one who can recognize their resemblances, than are these organisms themselves. The sociologist31 is more embarrassed; the elements, which for him are men, are too unlike, too variable, too capricious, in a word, too complex; besides, history never begins over again. How then choose the interesting fact, which is that which begins again? Method is precisely the choice of facts; it is needful then to be occupied first with creating a method, and many have been imagined, since none imposes itself, so that sociology is the science which has the most methods and the fewest results.
Therefore it is by the regular facts that it is proper to begin; but after the rule is well established, after it is beyond all doubt, the facts in full conformity32 with it are erelong without interest since they no longer teach us anything new. It is then the exception which becomes important. We cease to seek resemblances; we devote ourselves above all to the differences, and among the differences are chosen first the most accentuated33, not only because they are the most striking, but because they will be the most instructive. A simple example will make my thought plainer: Suppose one wishes to determine a curve by observing some of its points. The practician who concerns himself only with immediate utility would observe only the points he might need for some special object. These points would be badly distributed on the curve; they would be crowded in certain regions, rare in others, so that it would be impossible to join them by a continuous line, and they would be unavailable for other applications. The scientist will proceed differently; as he wishes to study the curve for itself, he will distribute regularly the points to be observed, and when enough are known he will join them by a regular line and then he will have the entire curve. But for that how does he proceed? If he has determined an extreme point of the curve, he does not stay near this extremity34, but goes first to the other end; after the two extremities35 the most instructive point will be the mid-point, and so on.
So when a rule is established we should first seek the cases where this rule has the greatest chance of failing. Thence, among other reasons, come the interest of astronomic36 facts, and the interest of the geologic37 past; by going very far away in space or very far away in time, we may find our usual rules entirely38 overturned, and these grand overturnings aid us the better to see or the better to understand the little changes which may happen nearer to us, in the little corner of the world where we are called to live and act. We shall better know this corner for having traveled in distant countries with which we have nothing to do.
But what we ought to aim at is less the ascertainment39 of resemblances and differences than the recognition of likenesses hidden under apparent divergences40. Particular rules seem at first discordant41, but looking more closely we see in general that they resemble each other; different as to matter, they are alike as to form, as to the order of their parts. When we look at them with this bias42, we shall see them enlarge and tend to embrace everything. And this it is which makes the value of certain facts which come to complete an assemblage and to show that it is the faithful image of other known assemblages.
I will not further insist, but these few words suffice to show that the scientist does not choose at random43 the facts he observes. He does not, as Tolstoi says, count the lady-bugs, because, however interesting lady-bugs may be, their number is subject to capricious variations. He seeks to condense much experience and much thought into a slender volume; and that is why a little book on physics contains so many past experiences and a thousand times as many possible experiences whose result is known beforehand.
But we have as yet looked at only one side of the question. The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living. Of course I do not here speak of that beauty which strikes the senses, the beauty of qualities and of appearances; not that I undervalue such beauty, far from it, but it has nothing to do with science; I mean that profounder beauty which comes from the harmonious44 order of the parts and which a pure intelligence can grasp. This it is which gives body, a structure so to speak, to the iridescent45 appearances which flatter our senses, and without this support the beauty of these fugitive46 dreams would be only imperfect, because it would be vague and always fleeting47. On the contrary, intellectual beauty is sufficient unto itself, and it is for its sake, more perhaps than for the future good of humanity, that the scientist devotes himself to long and difficult labors48.
It is, therefore, the quest of this especial beauty, the sense of the harmony of the cosmos49, which makes us choose the facts most fitting to contribute to this harmony, just as the artist chooses from among the features of his model those which perfect the picture and give it character and life. And we need not fear that this instinctive22 and unavowed prepossession will turn the scientist aside from the search for the true. One may dream a harmonious world, but how far the real world will leave it behind! The greatest artists that ever lived, the Greeks, made their heavens; how shabby it is beside the true heavens, ours!
And it is because simplicity, because grandeur50, is beautiful, that we preferably seek simple facts, sublime51 facts, that we delight now to follow the majestic52 course of the stars, now to examine with the microscope that prodigious53 littleness which is also a grandeur, now to seek in geologic time the traces of a past which attracts because it is far away.
We see too that the longing30 for the beautiful leads us to the same choice as the longing for the useful. And so it is that this economy of thought, this economy of effort, which is, according to Mach, the constant tendency of science, is at the same time a source of beauty and a practical advantage. The edifices54 that we admire are those where the architect has known how to proportion the means to the end, where the columns seem to carry gaily55, without effort, the weight placed upon them, like the gracious caryatids of the Erechtheum.
Whence comes this concordance? Is it simply that the things which seem to us beautiful are those which best adapt themselves to our intelligence, and that consequently they are at the same time the implement56 this intelligence knows best how to use? Or is there here a play of evolution and natural selection? Have the peoples whose ideal most conformed to their highest interest exterminated57 the others and taken their place? All pursued their ideals without reference to consequences, but while this quest led some to destruction, to others it gave empire. One is tempted58 to believe it. If the Greeks triumphed over the barbarians59 and if Europe, heir of Greek thought, dominates the world, it is because the savages60 loved loud colors and the clamorous61 tones of the drum which occupied only their senses, while the Greeks loved the intellectual beauty which hides beneath sensuous62 beauty, and this intellectual beauty it is which makes intelligence sure and strong.
Doubtless such a triumph would horrify63 Tolstoi, and he would not like to acknowledge that it might be truly useful. But this disinterested64 quest of the true for its own beauty is sane65 also and able to make man better. I well know that there are mistakes, that the thinker does not always draw thence the serenity66 he should find therein, and even that there are scientists of bad character. Must we, therefore, abandon science and study only morals? What! Do you think the moralists themselves are irreproachable67 when they come down from their pedestal?
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1
marvels
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| n.奇迹( marvel的名词复数 )；令人惊奇的事物（或事例）；不平凡的成果；成就v.惊奇，对…感到惊奇( marvel的第三人称单数 ) | |
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solely
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| adv.仅仅，唯一地 | |
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plutocracy
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| n.富豪统治 | |
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mediocre
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| adj.平常的，普通的 | |
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sages
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| n.圣人( sage的名词复数 )；智者；哲人；鼠尾草（可用作调料） | |
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shunning
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| v.避开，回避，避免( shun的现在分词 ) | |
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ennui
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| n.怠倦，无聊 | |
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remains
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| n.剩余物，残留物；遗体，遗迹 | |
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determined
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| adj.坚定的；有决心的 | |
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immediate
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| adj.立即的；直接的，最接近的；紧靠的 | |
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hierarchy
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| n.等级制度；统治集团，领导层 | |
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judicious
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| adj.明智的，明断的，能作出明智决定的 | |
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pebble
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| n.卵石，小圆石 | |
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pebbles
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| [复数]鹅卵石； 沙砾； 卵石，小圆石( pebble的名词复数 ) | |
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complexity
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| n.复杂(性)，复杂的事物 | |
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simplicity
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| n.简单，简易；朴素；直率，单纯 | |
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mingled
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| 混合，混入( mingle的过去式和过去分词 )； 混进，与…交往[联系] | |
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recurring
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| adj.往复的，再次发生的 | |
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heterogeneous
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| adj.庞杂的；异类的 | |
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edifice
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| n.宏伟的建筑物(如宫殿，教室) | |
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justifies
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| 证明…有理( justify的第三人称单数 )； 为…辩护； 对…作出解释； 为…辩解（或辩护） | |
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instinctive
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| adj.(出于)本能的；直觉的；(出于)天性的 | |
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instinctively
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| adv.本能地 | |
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precisely
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| adv.恰好，正好，精确地，细致地 | |
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infinitely
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| adv.无限地，无穷地 | |
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astronomer
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| n.天文学家 | |
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qualitative
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| adj.性质上的，质的，定性的 | |
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effaced
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| v.擦掉( efface的过去式和过去分词 )；抹去；超越；使黯然失色 | |
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physicist
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| n.物理学家，研究物理学的人 | |
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longing
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| n.（for）渴望 | |
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sociologist
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| n.研究社会学的人，社会学家 | |
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conformity
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| n.一致，遵从，顺从 | |
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accentuated
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| v.重读( accentuate的过去式和过去分词 )；使突出；使恶化；加重音符号于 | |
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extremity
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| n.末端，尽头；尽力；终极；极度 | |
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extremities
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| n.端点( extremity的名词复数 )；尽头；手和足；极窘迫的境地 | |
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astronomic
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| 天文学的，星学的 | |
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geologic
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| adj.地质的 | |
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entirely
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| ad.全部地，完整地；完全地，彻底地 | |
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ascertainment
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| n.探查，发现，确认 | |
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divergences
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| n.分叉( divergence的名词复数 )；分歧；背离；离题 | |
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discordant
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| adj.不调和的 | |
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bias
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| n.偏见，偏心，偏袒；vt.使有偏见 | |
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random
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| adj.随机的；任意的；n.偶然的(或随便的)行动 | |
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harmonious
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| adj.和睦的，调和的，和谐的，协调的 | |
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iridescent
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| adj.彩虹色的，闪色的 | |
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fugitive
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| adj.逃亡的，易逝的；n.逃犯，逃亡者 | |
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fleeting
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| adj.短暂的，飞逝的 | |
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labors
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| v.努力争取(for)( labor的第三人称单数 )；苦干；详细分析；（指引擎）缓慢而困难地运转 | |
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cosmos
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| n.宇宙；秩序，和谐 | |
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50
grandeur
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| n.伟大，崇高，宏伟，庄严，豪华 | |
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sublime
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| adj.崇高的，伟大的；极度的，不顾后果的 | |
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majestic
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| adj.雄伟的，壮丽的，庄严的，威严的，崇高的 | |
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prodigious
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| adj.惊人的，奇妙的；异常的；巨大的；庞大的 | |
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edifices
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| n.大建筑物( edifice的名词复数 ) | |
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gaily
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| adv.欢乐地，高兴地 | |
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implement
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| n.(pl.)工具，器具；vt.实行，实施，执行 | |
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exterminated
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| v.消灭，根绝( exterminate的过去式和过去分词 ) | |
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tempted
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| v.怂恿（某人）干不正当的事；冒…的险（tempt的过去分词） | |
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barbarians
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| n.野蛮人( barbarian的名词复数 )；外国人；粗野的人；无教养的人 | |
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savages
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| 未开化的人，野蛮人( savage的名词复数 ) | |
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clamorous
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| adj.吵闹的，喧哗的 | |
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sensuous
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| adj.激发美感的；感官的，感觉上的 | |
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horrify
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| vt.使恐怖，使恐惧，使惊骇 | |
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disinterested
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| adj.不关心的，不感兴趣的 | |
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sane
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| adj.心智健全的，神志清醒的，明智的，稳健的 | |
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serenity
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| n.宁静，沉着，晴朗 | |
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irreproachable
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| adj.不可指责的，无过失的 | |
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