n.对比，差异 vt.比较

　　Tom is introverted. By contrast, his brother John is extroverted.

　　汤姆很内向。相对之下，他哥哥约翰就很外向。

　　The puppy appears small in contrast to its mother.

　　这只小狗和母狗比起来模样小多了。

　　When you contrast John with Tom, you'll find a big difference between them in terms of personality.

　　你将约翰与汤姆对比时，会发现两人的个性有很大的差异。

　　contrary

　　a.相反的，对立的 n.相反

　　The new regulations are contrary to the public interest.

　　新规定和公共利益相对立。

　　The camera was far from a bargain; on the contrary, it was too expensive.

　　这台相机一点也不划算。相反地，它的价格太贵了。

　　accompany

　　vt.陪伴

　　Let me accompany you to your house.

　　让我陪你回家吧。

　　companion

　　n.伴侣，同伴（可数）

　　The dog is man's faithful companion.

　　狗是人类忠实的同伴。

　　assign

　　vt.分配；指派

　　Our teacher will assign us tasks for the morning.

　　老师将会为我们分配早上的工作。

　　The trained cadets have been assigned to their places of duty.

　　那些受过专业训练的军校生被派到不同的岗位上履职。

　　They assigned someone to watch the suspect twenty- four hours a day.

　　他们指派某人1天24小时看守该嫌犯。

　　assignment

　　n.任命，派定的工作；指定作业或功课

　　We are going to Tokyo on a special assignment for our magazine.

　　我们将为我们的杂志到东京出一趟特别任务。

　　My first assignment in the company was to serve my colleagues coffee.

　　我在公司的第一项工作就是替我的同事们倒咖啡。

　　Please complete your assignment before our next class.

　　请在下节课之前完成作业。

　　Our English teacher gives us more reading assignments than we can handle.

　　我们英语老师给我们布置了太多任务。

　　preserve

　　v.保存，维持，腌制 n.果酱，蜜饯

　　The boy's quick judgment preserved his life.

　　这个男孩快速的判断力保护了他的生命。

　　The police must preserve public order.

　　警察必须维护社会秩序。

　　What is the best method of preserving plums?

　　腌制李子最好的方法是什么？

　　I like peach preserves on toast.

　　我喜欢在土司上放桃子果酱。

　　preservation

　　n.保存，保护

　　All the books in the library are in a good state of preservation.

　　图书馆里的书都保存的比较好。

　　The preservation of our national parks is important.

　　保护国家公园非常重要。

　　distinguish

　　v.分辨，区别，使扬名

　　It took me months to distinguish my girlfriend's voice from her sister's on the telephone.

　　我花了几个月的时间才能从电话上区分我女朋友的声音和她妹妹的声音。

　　Dolly distinguished herself by her profound scholarship.

　　多莉因为奖学金而闻名。

　　distinguished

　　a.杰出的，著名的

　　The award went to a distinguished movie director.

　　这项奖品归于一名杰出的电影导演。

　　Dr. Kahn is distinguished for his knowledge of classical Chinese literature.

　　卡恩博士因其对经典中国文学的了解而出名。