Here is the explanation of why those 2 things work differently in the reassembling cases.

现在我给你们讲解一下为何,这两个重组例子的结果会不同。

耶鲁公开课 - 死亡课程节选

I'm going to talk a little bit more about this while people go through this.

我来详细讲解一下,你们一边做，一边听。

耶鲁公开课 - 心理学导论课程节选

Let me just briefly look at the ride on the way down.

让我简单的来讲解一下下降过程

耶鲁公开课 - 基础物理课程节选