And I didn't realize until I saw how the experiment was done, it was very clever -the way that the ants know it is that they'll go out, you know, a few ants will go out searching.

后来，直到我做了实验才发现，这是非常聪明的，蚂蚁的方法，它们会出门，你知道，会有几个蚂蚁出去寻找。

youdao

It didn't turn out well, but you know, I mean it was a nice memory though, a good experience making chocolate."

VOA: special.2010.02.08

I had made him know that I felt he was cruel and I had done it without his punishing me.

同时，我让他感到了自己的残忍,对此他无能为力。

耶鲁公开课 - 1945年后的美国小说课程节选

I chose English Literature because when I started off a university, I didn't know what it was I wanted to do.

我选英语文学是因为当我刚上大学的时候，我不知道自己到底想做什么。

为何选那门专业？ - SpeakingMax英语口语达人

Mr. KENNEDY: Um, all I know is it was football, but I don't know if it was Monday night or Sunday night.

NPR: College Freshman Brings Unique Worldview to School

So I think it was a -- I know the President believed it was a good call.

WHITEHOUSE: Press Briefing

It was, I don't know, it was horrible.

NPR: Spread of Iraqi Insurgency Feared in Arab World