This man was incredulous. "I heard like a big ringing around but I didn't understand whether it was for real,understand?

VOA: standard.2010.01.20

I didn't expect it to do this. If you understand why it did what it did, you're half way there.

这样运行的啊，如果你能弄明白为什么,它这么运行，你已经完成了差不多一半了。

麻省理工公开课 - 计算机科学及编程导论课程节选

but I didn't understand the people. So it was a big shock.

但是我却听不懂别人说的话。所以，这是个巨大的打击。

语法和语调是关键 - SpeakingMax英语口语达人

It was a terrible move, I didn't understand what I was doing and I was dragged in to it.

BBC: Women 'home alone'

They kept talking because they assumed I didn't understand them and I let them believe it I thought it would be a good way to learn how this business really is.

WSJ: Model Citizens

They waived all the examinations, but I didn't understand a word in class when I got there.

WSJ: Managing in Asia: Good Brew: Happy Employees, Local Flair; Starbucks Jinlong Wang