首先，他们需要我们的时间。

First, they need our time.

youdao

他们需要我们的帮助。

They need our help.

youdao

穷国容易受到（气候变化）的冲击，他们需要我们的帮助。

Poor countries are vulnerable and need our help.

youdao

And, if we wanted to try to fit, say, hydrogen, into this scheme that we have, we have to do what?

如果我们想要让他们符合我们的原理比如氢气，我们需要怎样？

麻省理工公开课 - 固态化学导论课程节选

They wake up.We need some way to refer to these people, so we can start talking about who they are.

他们醒来之后，我们需要让人们，了解这种情况以便探讨他们是谁。

耶鲁公开课 - 死亡课程节选

We just want to get a rough idea so we can tell me they need to have another 20 or they need to have another 100.

我们只是想得出个大概的数目,这样我们就可以告诉他们,是还需要20本还是100本。

麻省理工公开课 - 固态化学导论课程节选