这并不是一门介绍性质的软件工程学课程所要关注的主要课题，但是我所介绍的那几种模式相当有价值。

This is not a major topic for the introductory software engineering course, but the few patterns I introduce are considered valuable.

youdao

直到我的课开始我才知道，因为在我的印象里，我将会作很多攀岩练习作为登山攀岩课程的一部分- - - - - - - -我在教室里的一座小墙上做一些上下攀爬练习，但是，课程主要是专注于攀岩设备和安全措施，练习绳结。

Up until my class began, I was under the impression that I would do a lot of climbing as part of my rock climbing class. I did make it up a small wall during the class, so there was some climbing.

youdao

他们中的某些人，主要是女性，现在会以“高龄学生”的身份出现在我的课堂里，补起他们二十多年前丢下的课程。

Some of them, mainly women, now show up in my classes as "older students," often returning to take up the education they dropped out of twenty-some years ago.

youdao

So, let me introduce you to some of the topics we are going to be covering in chemistry this semester.

让我先给你们介绍一下,我们这个学期课程的主要话题。

麻省理工公开课 - 化学原理课程节选