Helen: What proof do you have?

海伦：你有什么证据吗？

youdao

What proof had he of this?

对此他有何证明？

youdao

What proof is there that the professor is dead?

有什么证据显示教授已经死了吗？

youdao

Welles said, forgive me for repeating myself from a previous class, Welles said the problem with Citizen Kane is that it just look like a young film maker trying to set proof to the world that he can make movies. That's exactly what it was.

请原谅我,又要重复上次课上的话，威尔斯说，《公民凯恩》的问题在于,它看起来就像是一个年轻的电影制作人,试图去向世界证明,他能够做电影，的确是这样。

麻省理工公开课 - 电影哲学课程节选

And what proof do they have that they were forced against their will?

FORBES: The Court��s Ruling

One of the things I really like to talk to entrepreneurs about is what is proof of concept to you?

FORBES: Investment Strategy- Physic Venture's Plans for Food & Health Tech

Grown-up people find it very difficult to believe really wonderful things, unless they have what they call proof.

NPR: Excerpt: 'Five Children and It'