The way I think of it is like the conversation hour for your foreign language class.

我认为这就像是,你的外语课堂上的对话时间。

耶鲁公开课 - 死亡课程节选

I'm teaching this class because I wish a class like this had been taught when I was sitting in your seat as an undergrad here.

我教授这门课是因为,在我读本科阶段时,非常希望能学习这样一门课程。

哈佛公开课 - 幸福课课程节选

Okay. Those of you who have your clickers let's pull them out, what I'd like you to do, if anybody doesn't have your clicker yet, please bring it to class. Please get one and bring it to class and we're only going to do one these exercise with the clickers today just as a test, but in subsequent classes we'll be using them quite a lot.

好,带了表决器的人把它拿出来,如果有人还没有表决器,我希望,你能弄一个然后把它带到课上,我们今天只要用表决器做一个测试,但之后的课中我们将多次使用到它

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选