我在这里向北大的同学们发表演讲，之所以感到十分的荣幸，是因为你们是未来中国的重要部分。

And it is a great honour for me to address the students of this university because you are an important part of China's future.

youdao

好了，同学们，你们的家庭作业是：设计一个应用程序，让人们使用它。

ALL right, class, here's your homework assignment: Devise an app. Get people to use it.

youdao

还有些同学我知道你们是很努力学习的，可是每次听力测试和辩论都表现平平，甚至处于相对劣势中，但是我想对你们说：不要紧的！

I know some of you have been working extremely hard, but did not perform well in each listening test and debating practice.

youdao

So this is to say, for those of you who are joining us today for the first time, that's totally fine.

也就是说，对于你们中第一次加入我们的同学而言,是相当不错的。

哈佛公开课 - 计算机科学课程节选

One thing I do ask you: If you are not doing it, if you don't participate, simply just keep quiet.

我对你们的一个要求是：,如果你不做，不参与的同学，请保持安静。

哈佛公开课 - 幸福课课程节选

It is not fair to classmates to have to listen to conversation.

让别的同学听你们聊天,是不公平的。

麻省理工公开课 - 固态化学导论课程节选