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