Most people, particularly in this course, do that, but it's not necessarily an advantage to do it.

大部分人,尤其是这门课的,都参加这个,不过并不一定能占到便宜

耶鲁公开课 - 1871年后的法国课程节选

And, of course, see that either way we do that we'll have an equality.

利用两种不同的顺序求二阶导数,就可以得到一个等式。

麻省理工公开课 - 热力学与动力学课程节选

So how do you get an "A" in the course?

你们如何在这门课程中得A呢

耶鲁公开课 - 生物医学工程探索课程节选