This is a really good topic to do the class before an exam because it's a little bit of a lighter topic.

这对于考试之前的一节课来说,是一个非常好的课题,因为这是一个稍微轻松一点的课题。

麻省理工公开课 - 化学原理课程节选

Before I begin, I want to just give some more thoughts about the diversification through securities and that will lead us into insurance.

在我讲课之前,我想让大家思考下,证券业的多元化,以便引入保险这一课题

耶鲁公开课 - 金融市场课程节选

Becasue that is one area where I taught.

我教学的内容也包括这一课题。

普林斯顿公开课 - 国际座谈会课程节选