If you're unsure about that, check out, of course, chapter three in the textbook, where these issues are addressed.

当然,如果还不确定,可以看看课本的第三章,这些问题都提到了

耶鲁公开课 - 聆听音乐课程节选

This, I think Chapter 3, describes fairly well the things we'll talk about today.

这个,我认为第三章,为我今天要讲的内容做了很好的讲解

耶鲁公开课 - 生物医学工程探索课程节选

Segment three the Housing bust.

第三章，房地产市场的萧条。

斯坦福公开课 - 经济学课程节选

In Genesis 3:15, God says to the snake: "I will put enmity Between you and the woman, ; And between your offspring and hers; They shall strike at your head, And you shall strike at their heel."

创世纪》第三章第十五节，耶和华对蛇说：,我要叫你和女人,彼此为敌，你的后裔与女人的后裔也彼此为敌;,她们要伤你的头，你将伤她们的脚跟“

耶鲁公开课 - 旧约导论课程节选

In chapter 3 we have the account of crossing the Jordan River.

在第三章中有对渡过约旦河的描写。

耶鲁公开课 - 旧约导论课程节选

And we'll talk about that and that's what Chapter 3 is about.

我们会在学习第三章时做进一步介绍

耶鲁公开课 - 生物医学工程探索课程节选

This week we're going to talk about DNA technology and genetic engineering: this is Chapter 3 of the book.

这星期我们将探讨DNA技术,和基因工程,这是本书第三章的内容

耶鲁公开课 - 生物医学工程探索课程节选