请先吃吧。

Please help yourself.

youdao

咱们先吃吧。

Let's eat first.

youdao

是的，我将告诉爷爷。但是让我们先吃吧。我太饿了。

Yes! I'll tell Grandpa. But let's eat first. I'm so hungry!

youdao

Not because you necessarily need it at the moment but your brain tells you you may need it later and so eat, eat, eat becomes the priority.

并不是因为当时真的需要,但你的大脑告诉你,你以后可能会需要,所以吃吧,先吃了再说

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选