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　   1. Libraries made education possible, and education in its turn added to libraries; the growth of knowledge followed a kind of compound-interest law, which was greatly enhanced by the invention of printing.

　　要点：从内容上剖析，which润饰 “the growth of knowledge”

　　图书馆的呈现使教育的开展成为可能，而教育的开展又反过来使图书馆不断扩大充分。常识的增加遵从了一种复利规律。由于印刷术的创造，这一常识增加进程得以大大加快。

　　2. If they can each be trusted to take such responsibilities, and to exercise such initiative as falls within their sphere, then administrative overhead will be low.

　　假如他们每个人都能予以信赖承担这样的职责，并在他们所统辖的范围内发挥主动性，那么管理费用就会降低。

　　3. There are probably no question we can think up that can’t be answered, sooner or later, including even that matter of consciousness.

　　早晚可能不存在咱们想得出但解答不了的问题，乃至包含咱们认识的问题。

　　4. The curtain was rung down in that phase of history, at least, by the sudden invention of the hydrogen bomb, of the ballistic missile and of rockets that can be aimed to hit the moon.

　　至少由于氢弹、弹道导弹和登月火箭出其不意地创造，那个历史时期宣告完毕了。

　　5. Studies of the Weddell seal in the laboratory have described the physiological mechanisms that allow the seals to cope with the extreme oxygen deprivation that occurs during its longest dives, which can extend 500 meters below the ocean’s surface and last for over 70 minutes. (三个定语从句)

　　关于威德尔海豹特别的生理机制，在试验室里对其进行的研讨已作过详细的描绘。该生理机制使海豹可以习惯长期潜水时呈现的极度缺氧。海豹长期潜水时最深可达水面以下500米，时间可继续70多分钟。

　　6. The renaissance of the feminist movement began during the 1950’s led to the Stasist school, which sidestepped the good bad dichotomy and argued that frontier women lived lives similar t the lives of women in the East.

　　20世纪50年代女权运动的复兴产生了斯塔西学派，这一学派逃避好与坏的二分法，以为边境地区妇女和东部妇女过着相同的日子。

　　7. Tom, the book’s protagonist, took issue with a man who doted on his household pet yet, as a slave merchant, thought “nothing of separating the husband from the wife, the parents from the children”.

　　书中的主人公汤姆与一个人发生了争执。这人虽然爱家中的宠物。但作为一个奴隶估客，却以为“离散夫妻，让骨肉分离算不了什么”。

　　8. We are not conscious of the extent to which work provide the psychological satisfaction that can make the difference between a full and an empty life.

　　咱们不了解作业给人们供给的能把充分的日子与空无的日子区别开来的心思满意的程度有多大。

　　9. Thus, the unity that should characterize the strong system is developed by affording opportunity for diversity, which appears to be essential if education is to develop in consideration of the needs of children and youth.

　　因此，强大的教育体系所具有的统一性这一特点是经过供给各种时机来到达的。假如开展教育要考虑儿童和青年的需要，多种时机就显得至关重要。

　　10. Automobiles have been designed which operate on liquid hydrogen, but these system give rise to seemingly unavoidable problems arising from the handling of a cryogenic liquid.

　　虽然现已设计出液氢驱动的汽车，可是这些体系带来一些由怎么处理低温液体而引发的似乎难以逃避的问题。

       11. Behaviorists suggest that the child who is raised in an environment where there are many stimuli which develop his or her capacity for appropriate responses will experience greater intellectual development.

　　行为主义者的观念是：假如一个儿童在有许多刺激物的环境中长大，而这些刺激物又能培育其作出适当的反响才能，那么他就会有比较高的智力开展水平。

　　12. While there are almost as many definitions of history as there are historians, modern practice most closely conforms to one that sees history as the attempt to recreate and explain the significant events of the past.

　　虽然有多少个历史学家，就差不多有多少种历史学的界说，但现代史学家的实践大都趋向于这样一种界说，即历史学是旨在重现和解释过去重大事件的学科。

　　13. While this boundary does not mark the outer limit of a State’s territory, since in international law the territorial sea forms part of a State’s territory, it does represent the demarcation(分界，定界，边界)between that maritime area(internal waters) where other States enjoy no general rights, and those maritime areas (the territorial sea and other zones) where other States do enjoy certain general rights.

　　虽然这条分界线并不算是国家疆域的外缘边界，可是，由于在国际法中领海也是国家疆域的组成部分，它的确是其他国家在其内不享有一般权力的海区(内水域)与其他国家在其中享有某些一般权力的那些海区(领海及其他区域)之间的分界线。

　　14. He finds that students who were easy to teach because they succeeded in putting everything they had been taught into practice, hesitate when confronted with the vast untouched area of English vocabulary and usage which falls outside the scope of basic textbooks.

　　他发现原先比较简单教的学生现在踌躇不前了：原先比较简单教是由于他们能把教给他们的一切东西都付诸实践;现在踌躇是由于他们面对着大量的在根底教科书上所没有触摸过的英语词汇和惯用法。

　　15. The reader who peruses (细读(正式)) with some attention the following pages will have occasion to see that both operational and mental aspects of physics have their place, but that neither should be stressed to the exclusion of the other.

　　读者假如稍微细心地阅览以下几页就会有理由以为，试验操作和思想在物理学中都具有必定的位置，因此不能着重一方而疏忽另一方。

　　16. The public is unhappy about the way society is going, and its view, fueled in part by the agendists and the media, seems to be that judicial (司法的)decisions unacceptable to them, regardless of the evidence or the law, will slow or change social directions.

　　大众对社会开展的前景不达观，在议事人士和新闻媒体的某种煽动下，大众的观念似乎是：不管依据或法令，司法判定对他们来说是不可承受的，这些判定将会推迟或许改动社会走向。

　　17. But I would like to do the same with the acclaim too, by using this moment as a pinnacle from which I might be listened to by the young men and women already dedicated to the same anguish(苦楚) and travail(辛苦), among whom is already that one who will some day stand here where I am standing.

　　我情愿使用这个时间，使用这个引人注目的讲坛，向那些听到我讲话并已牺牲同一艰苦劳作的男女青年致敬。他们当中必定有人早晚也会站到我现在所站的当地。