时间是你最有价值的帮手，尤其是在考试中。

Time is your most valuable resource, especially in examinations.

《牛津词典》

我们必须仔细点，以免在考试中犯错。

We must be careful to avoid making mistakes in the exam.

youdao

要是他在考试中多注意一下拼写就好了。

If only he had paid more attention to his spelling in the examination.

youdao

But again, that we will supply for you on the exam just in case you forget it at that moment.

但在考试中我们会给出这个值,以防你当时忘记了。

麻省理工公开课 - 化学原理课程节选

Anything that's mentioned there is fair game for me in an exam and that's the way I've done it.

在这部分出现的内容,都可能在考试中出现,这就是我考试的方式

耶鲁公开课 - 金融市场课程节选

And I'll just point out here also, this is a conversion factor you'll use quite frequently -- many of you, quite on accident, will memorize it as you use it over and over again.

你们会经常用到，所以你们可能,会不小心记住它的值，但我们并不会在,任何考试中。

麻省理工公开课 - 化学原理课程节选