youdao

你完全不必担心，我们挺好的。

B:There's no need for you to worry.We're quite alright.

youdao

但完全不必如此，至少是不完全如此。

But it doesn't have to be that way, at least not entirely.

youdao

I think most of us don't believe that two firms is enough to make it a perfect competition, that the regulator shouldn't worry about the third firm.

我想大多数人不相信两家公司,就足够产生完全竞争,不相信监控者不必调查第三家公司

耶鲁公开课 - 博弈论课程节选

You don't have to do it by yourself.

你不必完全独立完成

耶鲁公开课 - 基础物理课程节选