Yes, I see them in the text just as anybody else does, but since I don't really know what they mean except by means of the translation, why should I use them?

我看着这些原版书，但是我也不懂他们真正什么意思,除了它们翻译过来的意思，所以我干嘛费劲去用俄语？

耶鲁公开课 - 文学理论导论课程节选

But the students, they think that I'm an old woman from the cave and I don't know anything

但学生们认为我是住在洞穴的老女人，我什么也不懂，

对于抄袭的想法 - SpeakingMax英语口语达人

I don't know the philology side, I don't know what disables to metaphysical questions.

我不知道者从语言学上来说对不对，我也不懂从形而上学角度看,有什么问题。

耶鲁公开课 - 死亡课程节选

If I'm saying something that you don't understand, the chances are pretty good that there's 25 or 50 other students in the class who don't understand it either.

如果我正说着什么你不懂的东西，那时就是举手的好机会,因为有25或50个别的学生,也不懂。

耶鲁公开课 - 死亡课程节选

I don't know them. I don't have that person.

我根本不懂,也不认识什么生理学家

耶鲁公开课 - 死亡课程节选