All right. So let me start again by reminding you what it is that was done last time.

好的,我们开始上课,先回顾下上节课的内容

耶鲁公开课 - 基础物理课程节选

To help you know sort of ahead of time quickly what those views are, I want to start by describing a set of views that many of you probably believe.

让你们稍微提早点儿知道,那些观点是什么，我想要从描述它开始,可能你们有些人会相信。

耶鲁公开课 - 死亡课程节选