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.
他发现原先比较容易教的学生现在踌躇不前了：原先比较容易教是因为他们能把教给他们的所有东西都付诸实践；现在踌躇是因为他们面对着大量的在基础教科书上所没有接触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.
读者如果略微仔细地阅读以下几页就会有理由认为，实验操作和思维在物理学中都具有一定的地位，因而不能强调一方而忽略另一方。
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.
公众对社会发展的前景不乐观，在议事人士和新闻媒体的某种鼓动下，公众的观点似乎是：不管证据或法律，司法判决对他们来说是不可接受的，这些判决将会延缓或者改变社会走向。
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(痛苦) and travail(辛苦), among whom is already that one who will some day stand here where I am standing.
我愿意利用这个时刻，利用这个举世瞩目的讲坛，向那些听到我讲话并已献身同一艰苦劳动的男女青年致敬。他们当中肯定有人迟早也会站到我现在所站的地方。