How do you join the army in the United States?

在美国怎么样才能入伍？

关于美军 - SpeakingMax英语口语达人

But, I think what most of you, actually having MIT come to MIT, have probably realized is sometimes it's nice to major in a science, because you can't just pick up a reaction and do it in your kitchen on the weekend, where as you can sometimes join a book group and do that.

但我认为对你们大多数人来说,既然来了,可能已经意识到最好是主修一门科学,因为你不能在你,周末的时候在厨房里做化学实验,然后你就可以参加一个读书俱乐部。

麻省理工公开课 - 化学原理课程节选

Other than that, I really do recommend that you join us.

此外，我强烈建议你参与。

哈佛公开课 - 幸福课课程节选

How do you join clubs at Berkeley?

在伯克利，你是怎么加入俱乐部的？

想加入社团 - SpeakingMax英语口语达人