One thing I do ask you: If you are not doing it, if you don't participate, simply just keep quiet.

我对你们的一个要求是：,如果你不做，不参与的同学，请保持安静。

哈佛公开课 - 幸福课课程节选

Well, it's just to keep the numbers-- there's actually not a very good reason to do splits.

其实只是为了维持一定的数量,实际上分割并没有很好的理由

耶鲁公开课 - 金融市场课程节选

Just to keep things clear, I will say that physicalists, materialists, do not believe in souls.

说得更明白一点,我会说物理主义者,唯物主义者,不相信灵魂

耶鲁公开课 - 死亡课程节选

Suppose you want to train somebody to do something and you want the training such that they'll keep on doing it even if you're not training them anymore, which is typically what you want.

假设你想训练某人做某事,你想要找到一种训练方法,使得他们即便不再接受训练,也依然能够持续展现某种行为，而这正是你想要的。

耶鲁公开课 - 心理学导论课程节选