After revealing much of that pain, the historians conclude by saying Russian national unity cannot be based upon varnished myths about the past;

VOA: standard.2009.12.25

You've got the model solutions, and there will be a test in recitation on Tuesday the 14th based upon that homework.

你们也有参考答案，在周二的背诵课上会有个测试,就是14号，基于你们的家庭作业。

麻省理工公开课 - 固态化学导论课程节选

But just to make sure, to stimulate interest, every Tuesday in recitation there'll be a ten minute quiz based upon the content of the homework.

但是只是确认一下，为了激发你们的兴趣，每周二的背诵课,将会有10分钟的测试,内容则是基于你们的作业。

麻省理工公开课 - 固态化学导论课程节选

A couple of announcements before we get started: tomorrow there will be a 10 minute quiz in recitation based upon the content of homework one.

在我们开始之前有几点声明：,明天会有一个10分钟的小测验,详细叙述课后作业内容。

麻省理工公开课 - 固态化学导论课程节选