如果你不知道如何交朋友，找出原因。

If you don't know how to make friends, find out the reason.

youdao

我不知道我现在的朋友在十年后是否还是你的朋友。

I wonder if my friends now are still friends with you, ten years later.

youdao

有什么关于你的事是连你朋友也不知道的？

What's something your friends don't even know about you?

youdao

Man, you're going to really make me work here, I have no idea if I can get it that far, ah your friend will help you out. Thank you.

我不知道我能不能扔那么远，你的朋友会帮你的，谢谢！,那位同学完全正确。

麻省理工公开课 - 计算机科学及编程导论课程节选