Well, first there's a distinction, a distinction between real dreams versus sleep thought.

首先，我们要区分，真正的梦和半睡半醒的想法。

耶鲁公开课 - 心理学导论课程节选

First of all,notice the obvious point that sometimes people die in their sleep,unexpectedly.

首先，有时人是在睡梦中无预兆地死去。

耶鲁公开课 - 死亡课程节选

I've found some people really have to come to the first and second row because they claim that if they don't hear me they cannot really go to sleep.

我发现有些人必须得在第一,二排睡觉,因为他们说如果听不到我的声音,他们就无法入睡

耶鲁公开课 - 基础物理课程节选

The first one's sleep.

第一个是睡眠。

耶鲁公开课 - 心理学导论课程节选

First,we'll put you to sleep when we do all this procedure.

首先会让你进入睡眠状态。

耶鲁公开课 - 死亡课程节选