If you guys are coming in a little late, don't worry about submitting the homework.

如果你们上课来迟了,就先别急着交作业

耶鲁公开课 - 基础物理课程节选

One of them I'll get to later; if not later today, then next lecture.

其中一个说法我会迟些解释;,如果不是今天迟些时候，就是下堂课。

耶鲁公开课 - 死亡课程节选