So when you go home today or some time this weekend, make sure you read this page in detail.

因此，请大家在今天回家之后或者在周末找个时间，务必仔细读一读这页纸。

麻省理工公开课 - 化学原理课程节选

So, in terms of practicing this weekend, I mentioned that instead of getting a problem-set today, what I am going to be posting is optional extra problems.

而对于这周的练习，我曾经说过今天将不会布置作业，但是会布置一些额外的习题。

麻省理工公开课 - 化学原理课程节选