Wednesday will be the test, Test 1, and I will say a few words about that, coverage through the end of lecture on Wednesday.

星期三会有测试，测试，我将说一些关于考试的事，周三的考试内容，涉及到这节课的末尾部分。

麻省理工公开课 - 固态化学导论课程节选

Now, I have to say a few words about units.

我现在要讲一下单位的问题

耶鲁公开课 - 基础物理课程节选