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

He had written a large handful of college exercises and assignments in Latin, and he had obviously made a favorable impression on his teachers, one of whom, at least, he stayed in touch with for years.

他用拉丁文写过大量练习,和作业，很显然，他也给老师留下了良好的印象，他还跟其中的一位老师保持了很多年的联系。

耶鲁公开课 - 弥尔顿课程节选

The second problem set is about this model.

第二次练习作业就是关于这个模型的。

耶鲁公开课 - 金融市场课程节选

Do the assignments, these listening exercises, on time.

完成作业,做听力练习,要准时

耶鲁公开课 - 聆听音乐课程节选

These are the basic theoretical structures that you incidentally need for the problem set, ... the first problem set. The first problem set-- I guess you've--you can turn in your first problem set here before you leave because it was due today.

这些是基础的理论框架,你会在做习题的时候用到它们，第一道练习。。。第一次练习是-,第一次练习作业的截止日期是今天,所以你们在今天在离开前把作业交上来。

耶鲁公开课 - 金融市场课程节选