"I have been thinking, Dad," said Steve that evening, while they sat at dinner, "of the railroad story you told me this morning. It was some yarn¹." His father laughed over the top of his coffee cup.

"It was, wasn't it?" replied he. "And the half was not told then. I was in too much of a hurry to give you an idea of all the trials the poor railroad builders encountered. Did it occur to you, for example, that after the roads to the Pacific coast were laid their managers were confronted by another great difficulty,—the difference in time between the east and the west?"

"I never thought of that," was Steve's answer. "Of course the time must have differed a lot."

"Indeed it did! Every little branch road followed the time peculiar² to its own section of the country, and the task of unifying³ this so that a basis for a common time-table could be adopted was tremendous. A convention of scientists from every section of the country was called to see what could be done about the fifty-three different times in use by the various railroads."

"Fifty-three!" ejaculated Stephen, with a grin. "Why, that was almost as many as Heinz pickles⁴."

"In this case the results of the fifty-three varieties were far more menacing, I am afraid, than those of the fifty-seven," said his father, with a smile, "for travel under such a régime was positively⁵ unsafe."

"I can see that it would be. What did they do?"

"Well, after every sort of suggestion had been presented it was decided⁶ to divide the country up into four immense parts, separated from one another by imaginary lines running north and south."

"Degrees of longitude⁷?"

"Precisely

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1 yarn
n.纱，纱线，纺线；奇闻漫谈，旅行轶事
参考例句：
I stopped to have a yarn with him.我停下来跟他聊天。 The basic structural unit of yarn is the fiber.纤维是纱的基本结构单元。

2 peculiar
adj.古怪的，异常的；特殊的，特有的
参考例句：
He walks in a peculiar fashion.他走路的样子很奇特。 He looked at me with a very peculiar expression.他用一种很奇怪的表情看着我。

3 unifying
使联合( unify的现在分词 )； 使相同； 使一致； 统一
参考例句：
In addition, there were certain religious bonds of a unifying kind. 此外，他们还有某种具有一种统一性质的宗教上的结合。 There is a unifying theme, and that is the theme of information flow within biological systems. 我们可以用一个总的命题，把生物学系统内的信息流来作为这一研究主题。

4 pickles
n.腌菜( pickle的名词复数 )；处于困境；遇到麻烦；菜酱
参考例句：
Most people eat pickles at breakfast. 大多数人早餐吃腌菜。 来自《简明英汉词典》 I want their pickles and wines, and that.' 我要他们的泡菜、美酒和所有其他东西。” 来自英汉文学 - 金银岛

5 positively
adv.明确地，断然，坚决地；实在，确实
参考例句：
She was positively glowing with happiness.她满脸幸福。 The weather was positively poisonous.这天气着实讨厌。

6 decided
adj.决定了的，坚决的；明显的，明确的
参考例句：
This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。 There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。

7 longitude
n.经线，经度
参考例句：
The city is at longitude 21°east.这个城市位于东经21度。 He noted the latitude and longitude,then made a mark on the admiralty chart.他记下纬度和经度，然后在航海图上做了个标记。

8 precisely
adv.恰好，正好，精确地，细致地
参考例句：
It's precisely that sort of slick sales-talk that I mistrust.我不相信的正是那种油腔滑调的推销宣传。 The man adjusted very precisely.那个人调得很准。

9 snarl
v.吼叫，怒骂，纠缠，混乱；n.混乱，缠结，咆哮
参考例句：
At the seaside we could hear the snarl of the waves.在海边我们可以听见波涛的咆哮。 The traffic was all in a snarl near the accident.事故发生处附近交通一片混乱。

10 copper
n.铜；铜币；铜器；adj.铜(制)的；(紫)铜色的
参考例句：
The students are asked to prove the purity of copper.要求学生们检验铜的纯度。 Copper is a good medium for the conduction of heat and electricity.铜是热和电的良导体。

11 machinery
n.(总称)机械，机器；机构
参考例句：
Has the machinery been put up ready for the broadcast?广播器材安装完毕了吗？ Machinery ought to be well maintained all the time.机器应该随时注意维护。

12 primitive
adj.原始的；简单的；n.原(始)人，原始事物
参考例句：
It is a primitive instinct to flee a place of danger.逃离危险的地方是一种原始本能。 His book describes the march of the civilization of a primitive society.他的著作描述了一个原始社会的开化过程。

13 shovel
n.铁锨，铲子，一铲之量；v.铲，铲出
参考例句：
He was working with a pick and shovel.他在用镐和铲干活。 He seized a shovel and set to.他拿起一把铲就干上了。

14 enigmas
n.难于理解的问题、人、物、情况等，奥秘( enigma的名词复数 )
参考例句：
The last words of Night Haunter stand as one of the great enigmas of Imperial history. 暗夜幽魂最后的临死前的话成为了帝国历史上的最大谜团之一。 来自互联网 Heraclitus saith well in one of his enigmas, Dry light is ever the best. 赫拉克里塔斯在他的隐语之一中说得很好，“干光永远最佳”。 来自互联网

15 laborers
n.体力劳动者，工人( laborer的名词复数 )；（熟练工人的）辅助工
参考例句：
Laborers were trained to handle 50-ton compactors and giant cranes. 工人们接受操作五十吨压土机和巨型起重机的训练。 来自《现代英汉综合大词典》 Wage-labour rests exclusively on competition between the laborers. 雇佣劳动完全是建立在工人的自相竞争之上的。 来自英汉非文学 - 共产党宣言

16 mused
v.沉思，冥想( muse的过去式和过去分词 )；沉思自语说（某事）
参考例句：
\"I wonder if I shall ever see them again, \"he mused. “我不知道是否还可以再见到他们，”他沉思自问。 来自《简明英汉词典》 \"Where are we going from here?\" mused one of Rutherford's guests. 卢瑟福的一位客人忍不住说道：‘我们这是在干什么？” 来自英汉非文学 - 科学史

17 epidemics
n．流行病
参考例句：
Reliance upon natural epidemics may be both time-consuming and misleading. 依靠天然的流行既浪费时间，又会引入歧途。 The antibiotic epidemics usually start stop when the summer rainy season begins. 传染病通常会在夏天的雨季停止传播。

18 mightiest
adj.趾高气扬( mighty的最高级 )；巨大的；强有力的；浩瀚的
参考例句：
\"If thou fearest to leave me in our cottage, thou mightiest take me along with thee. “要是你害怕把我一个人留在咱们的小屋里，你可以带我一块儿去那儿嘛。 来自英汉文学 - 红字 Silent though is, after all, the mightiest agent in human affairs. 确实，沉默毕竟是人类事件中最强大的代理人。 来自互联网

19 feats
功绩，伟业，技艺( feat的名词复数 )
参考例句：
He used to astound his friends with feats of physical endurance. 过去，他表现出来的惊人耐力常让朋友们大吃一惊。 His heroic feats made him a legend in his own time. 他的英雄业绩使他成了他那个时代的传奇人物。

20 marvels
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 )
参考例句：
The doctor's treatment has worked marvels : the patient has recovered completely. 该医生妙手回春，病人已完全康复。 来自辞典例句 Nevertheless he revels in a catalogue of marvels. 可他还是兴致勃勃地罗列了一堆怪诞不经的事物。 来自辞典例句

21 penetrates
v.穿过( penetrate的第三人称单数 )；刺入；了解；渗透
参考例句：
This is a telescope that penetrates to the remote parts of the universe. 这是一架能看到宇宙中遥远地方的望远镜。 来自《简明英汉词典》 The dust is so fine that it easily penetrates all the buildings. 尘土极细，能极轻易地钻入一切建筑物。 来自辞典例句

22 celebrated
adj.有名的，声誉卓著的
参考例句：
He was soon one of the most celebrated young painters in England.不久他就成了英格兰最负盛名的年轻画家之一。 The celebrated violinist was mobbed by the audience.观众团团围住了这位著名的小提琴演奏家。

23 skilful
(=skillful)adj.灵巧的，熟练的
参考例句：
The more you practise,the more skilful you'll become.练习的次数越多，熟练的程度越高。 He's not very skilful with his chopsticks.他用筷子不大熟练。

24 inaccessible
adj.达不到的，难接近的
参考例句：
This novel seems to me among the most inaccessible.这本书对我来说是最难懂的小说之一。 The top of Mount Everest is the most inaccessible place in the world.珠穆朗玛峰是世界上最难到达的地方。

25 accomplished
adj.有才艺的；有造诣的；达到了的
参考例句：
Thanks to your help,we accomplished the task ahead of schedule.亏得你们帮忙,我们才提前完成了任务。 Removal of excess heat is accomplished by means of a radiator.通过散热器完成多余热量的排出。

26 triumphant
adj.胜利的，成功的；狂欢的，喜悦的
参考例句：
The army made a triumphant entry into the enemy's capital.部队胜利地进入了敌方首都。 There was a positively triumphant note in her voice.她的声音里带有一种极为得意的语气。

27 mighty
adj.强有力的；巨大的
参考例句：
A mighty force was about to break loose.一股巨大的力量即将迸发而出。 The mighty iceberg came into view.巨大的冰山出现在眼前。

28 civilized
a.有教养的，文雅的
参考例句：
Racism is abhorrent to a civilized society. 文明社会憎恶种族主义。 rising crime in our so-called civilized societies 在我们所谓文明社会中日益增多的犯罪行为

29 superstitious
adj.迷信的
参考例句：
They aim to deliver the people who are in bondage to superstitious belief.他们的目的在于解脱那些受迷信束缚的人。 These superstitious practices should be abolished as soon as possible.这些迷信做法应尽早取消。

30 vehemently
adv. 热烈地
参考例句：
He argued with his wife so vehemently that he talked himself hoarse. 他和妻子争论得很激烈，以致讲话的声音都嘶哑了。 Both women vehemently deny the charges against them. 两名妇女都激烈地否认了对她们的指控。

31 inevitably
adv.不可避免地；必然发生地
参考例句：
In the way you go on,you are inevitably coming apart.照你们这样下去，毫无疑问是会散伙的。 Technological changes will inevitably lead to unemployment.技术变革必然会导致失业。

32 overrode
越控( override的过去式 )； （以权力）否决； 优先于； 比…更重要
参考例句：
The chairman overrode the committee's objections and signed the agreement. 主席不顾委员会的反对，径行签署了协议。 The Congress overrode the President's objection and passed the law. 国会不顾总统的反对，通过了那项法令。

33 drawn
v.拖，拉，拔出；adj.憔悴的，紧张的
参考例句：
All the characters in the story are drawn from life.故事中的所有人物都取材于生活。 Her gaze was drawn irresistibly to the scene outside.她的目光禁不住被外面的风景所吸引。

34 chuckled
轻声地笑( chuckle的过去式和过去分词 )
参考例句：
She chuckled at the memory. 想起这件事她就暗自发笑。 She chuckled softly to herself as she remembered his astonished look. 想起他那惊讶的表情，她就轻轻地暗自发笑。

35 spoke
n.（车轮的）辐条；轮辐；破坏某人的计划；阻挠某人的行动 v.讲，谈（speak的过去式）；说；演说；从某种观点来说
参考例句：
They sourced the spoke nuts from our company.他们的轮辐螺帽是从我们公司获得的。 The spokes of a wheel are the bars that connect the outer ring to the centre.辐条是轮子上连接外圈与中心的条棒。

36 fervent
adj.热的，热烈的，热情的
参考例句：
It was a debate which aroused fervent ethical arguments.那是一场引发强烈的伦理道德争论的辩论。 Austria was among the most fervent supporters of adolf hitler.奥地利是阿道夫希特勒最狂热的支持者之一。

37 indirectly
adv.间接地，不直接了当地
参考例句：
I heard the news indirectly.这消息我是间接听来的。 They were approached indirectly through an intermediary.通过一位中间人，他们进行了间接接触。

38 gasped
v.喘气( gasp的过去式和过去分词 )；喘息；倒抽气；很想要
参考例句：
She gasped at the wonderful view. 如此美景使她惊讶得屏住了呼吸。 People gasped with admiration at the superb skill of the gymnasts. 体操运动员的高超技艺令人赞叹。 来自《现代汉英综合大词典》

39 conundrum
n.谜语；难题
参考例句：
Let me give you some history about a conundrum.让我给你们一些关于谜题的历史。 Scientists had focused on two explanations to solve this conundrum.科学家已锁定两种解释来解开这个难题。

40 riddle
n.谜，谜语，粗筛；vt.解谜，给…出谜，筛，检查，鉴定，非难，充满于；vi.出谜
参考例句：
The riddle couldn't be solved by the child.这个谜语孩子猜不出来。 Her disappearance is a complete riddle.她的失踪完全是一个谜。