I remembered the saying we learnt in class about not judging (判断) a book by its cover.

我想起了我们在课堂上学过的一句话：不要以貌取人。

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If your childbirth class doesn't cover breastfeeding, take a class that focuses on it.

如果你的分娩课程中没有涵盖母乳哺育，那就去上些关注这方面的课程。

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That ever-expanding content is the crux of the social studies teacher's dilemma: How to cover every topic with limited class time?

不断扩大的教授内容是让社会老师进退两难的难题：如何在有限的课堂时间里做到面面俱到呢？

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So, that's a little bit about the chemistry that we're going to cover in this class, and now I'm going to talk a little bit about some of the policies and procedures.

以上是我们这个课程会讲到的一些内容,然后我要讲一些，关于这个课程的政策和程序,但首先让我介绍和我一起授这门课的同事。

麻省理工公开课 - 化学原理课程节选

So here are some things that a class on death could cover that we won't talk about.

那么这里有的，是其他关于死亡的课,会讲但是我们不会谈论的东西。

耶鲁公开课 - 死亡课程节选

But it's a philosophy class, and what that means is that the set of topics that we're going to be talking about in this class are not identical to the topics that other classes on death might try to cover.

但是它是一门哲学课，这就意味着,我们在这门课上要讨论的一系列问题,和其他讲死亡的课上讨论的问题,是不一样的。

耶鲁公开课 - 死亡课程节选

The models cover in this class provide a foundation for future social science classes, whether they be in economics, political science, business, or sociology.

FORBES: Learn How Model Thinking Can Make You a Better Thinker

But while Hilton is appropriately young, rich and well-connected, she's not exactly a cover girl for class, what with those sex tapes, drug charges and reality TV shows.

FORBES: Magazine Article

Attorneys for the plaintiffs say the class could ultimately cover tens of thousands of Native American farmers and ranchers who may have been discriminated against by the USDA, dating back to 1991.

NPR: Native American Farmers Allege Loan Bias