I will lose concentration when I can't understand what the teacher is saying.

当我听不懂老师在说什么时，我就会走神。

youdao

I can't understand what he meant.

我不理解他是什么意思。

youdao

I can't understand what they're speaking.

我不明白他们在说什么。

youdao

Why don't I just set aside my preliminary conceptions so that I can understand precisely what is there?

我为什么不能抛开这些初步概念,而正确地理解存在呢？

耶鲁公开课 - 文学理论导论课程节选

"I don't think anyone can understand what he's going through, " admitted Vaughan.

BBC: Vaughan has faith in Trescothick