That they exist is a proof that American ideals are not the tawdry pretenses they are so often accused of being.

或许这类人的存在,正证明了美国式理想并非无可挑剔,或者说它也在经受着现实的折磨，“

耶鲁公开课 - 1945年后的美国小说课程节选

Of course, that's not the useful application for it, it's more of a proof of principle, but it does show you that you can put it in for studies in any organisms.

当然，这不是很有用的应用，这仅仅是一个原理上的证明，但它告诉你你可以把它,放到研究任何生物体中。

麻省理工公开课 - 化学原理课程节选

And, in fact, a computer program has come up with a proof that, as far as was known, nobody in the world had ever come up with before.

而实际上,电脑程序的证明方式,据目前所知,是前人们从未曾提出过的

耶鲁公开课 - 死亡课程节选

So some people believe that Christians, precisely because they wanted to proof text a lot, they wanted to run around through a lot of different texts, they actually invented the codex.

所以有些人认为，想核对经文的基督教徒，需要查阅很多不同的经文，于是他们发明了抄本。

耶鲁公开课 - 新约课程节选

4 So this is 16 times 4 equals 64 and though this is not proof by any means, it's not a formal proof because here is one example that happens to prove my point.

所以是16*4，即,尽管如此，这并不是严格的证明,因为是这个例子碰巧证明了我的观点。

哈佛公开课 - 计算机科学课程节选

Now there's one way in which Tony is probably not a good proof text for the New Criticism.

但是《搬运车托尼》从某个角度来说,也许并不适合作为新批评主义的范本。

耶鲁公开课 - 文学理论导论课程节选

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