alter v. 改变，修改
例句：Annie had to alter her clothes after losing weight.
安妮瘦了以后，衣服也得修改了。

alert adj. 提防的，警惕的，机敏的 n. 警惕，警报 v. 使警惕
例句：Although Alfred's over eighty, his mind is still remarkably alert.
尽管阿尔弗雷德已年过八十，但头脑仍然十分机敏。

alternate adj. 交替的，轮流的，预备的 v. 交替，轮流，改变
例句：Cherry gets Saturdays off in her new job as against working alternate weekends in her last one.
切莉新找的这份工作星期六放假，而原来的那份工作周末是轮流放假。

alternative n. 二中选一，可供选择的办法 adj. 选择性的
例句：Caught in the act, Terry had no alternative but to confess.
特里被当场抓住，除了招供没有别的可供选择的办法。

modify vt. 更改，修改 v. 修改
例句：Nate will have to modify his views if he wants to be elected.
耐特要想当选就得修改他的观点。

revise vt. 修订，校订，修正，修改
例句：Tommy revised the manuscript of his book before sending it to the publisher.
汤米对自己那本书的手稿先进行校订，然后才把它交给出版社。

revive v. （使）苏醒，（使）复兴，（使）复活，（使）再生效，回想
例句：Due to the serious water pollution, all attempts to revive the fishing industry were doomed to failure．
由于严重的水污染，千方百计复兴渔业的尝试注定徒劳无功。

adjust vt. 调整，调节，校准，使适合
例句：Could you do Tony a favor to teach me how to adjust the camera?
你能教托尼怎么调节照相机吗？