"One soldier had been fighting in the jungles for years. And I don't know if it had affected him or not, but when the clerk handed him a tweed suit to try on he spent three hours searching through the fuzz for snipers."

VOA: special.2009.03.09

I don't know when I'll be back. But I'm very excited.

我不知道我什么时候能回来，但是我很兴奋。

I'm about to 实战 - SpeakingMax英语口语达人

I don't know about that. I am not so sure." But then, we realized that like when we walk out that door, it's the whole world again. So you get sucked up by your group, by your sort of identity.

我不知道，不是很确定，然后呢，我们就意识到走出那个大门，又是一个完整的世界，所以你就会,被你的团体，你的身份所束缚。

普林斯顿公开课 - 人性课程节选

"I do plan to return to golf one day, I just don't know when that day will be."

VOA: standard.2010.02.19

I don't know when this is going to get aired

我不知道这个录像什么时候播出，

我们是校园情侣 - SpeakingMax英语口语达人

I don't know what that dream we're going to dream together is when we read that novel. I don't know what that'll be.

我不知道当我们一起读那部小说的时候,我们将会一起做个什么样的梦，我不知道。

耶鲁公开课 - 1945年后的美国小说课程节选

So, I don't know what she grew up hearing about when she went to her grandparents' house, but it might have been wave function squared.

我不知道她小时候,在，她外祖父家里，听到了什么，也许她听到过，波函数。

麻省理工公开课 - 化学原理课程节选

Well, it wouldn't have been automobile loans when these were created; I don't know, something loans, etc.

信用合作社成立之初大概还没有汽车贷款,反正诸如此类贷款吧

耶鲁公开课 - 金融市场课程节选

PROFESSOR: Great question. So the question is, how do you choose an algorithm, why would I choose to use a pseudo-polynomial algorithm when I don't know how big the solution is likely to be, I think that's one way to think about it.

教授：问得好，所以问题是，你怎样选择算法，为什么当我,不知道解决方案会有多大的时候,我要选伪多项式算法呢，我想这是一种思考问题的方式。

麻省理工公开课 - 计算机科学及编程导论课程节选

Because of this policy, I don't actually know when all is said and done whether at the end of the semester I'm any harder, whether I depart from the average or not.

因为这个政策，我其实不知道当所有的说完,和做完是否在学期结束我评分更严格，是否我偏离了平均水平。

耶鲁公开课 - 死亡课程节选

What I was going to say is that you could, at least theoretically, strike with your spear in a overhand manner or you could strike with it in an underhand manner, the only thing is I don't know how you do that underhand when you're in the middle of a phalanx.

我要说的是,士兵们能够,至少从理论上来说,可以自上而下地刺矛,也可以这样自下而上地刺矛,我不太清楚在方阵中,士兵们怎么能够自下而上地刺矛

耶鲁公开课 - 古希腊历史简介课程节选

I don't know if you know this, but for a long time when movies took place in New York,

我不清楚你是否知道，很长一段时间，电影里发生在纽约的场景，

电影里的中央车站 - SpeakingMax英语口语达人

just in a sense that when she was taking, say, I don't know, class like C.C., which is Contemporary Civilization, or Lit. Hum.,

就好像她在上论当代文明，或人类文学这样的课程时，我不太清楚，

介绍好朋友 - SpeakingMax英语口语达人

You know, when I go out, I mean, I don't go down to Pier 39 or Fisherman's Warf, you know. I mean, It's...

当我来的时候，我不会去39号码头或者渔人码头。我的意思是，

鲜为人知的名胜 - SpeakingMax英语口语达人

So it's not to be used when you just feel sort of "Nahhhh, I don't know."

所以，当你仅仅是觉得“嗯……我不清楚”的时候，不能用这个句型。

I hate 课堂 - SpeakingMax英语口语达人

Some of you are probably going to be doctors and you don't know why I'm going to do special relativity or quantum mechanics, but you don't know when it will come in handy.

你们中的有些人可能会成为医生,但你们现在不能理解,我为什么要讲相对论和量子力学,但是说不定什么时候,你就用上了呢

耶鲁公开课 - 基础物理课程节选

When I don't know even necessarily... Well, it's not my choice,

有时候我甚至自己都不一定知道……嗯，这不是我的选择，

有这样的困难 - SpeakingMax英语口语达人

when I don't know what they'll do with it.

因为我并不知道他们会用这一美元做什么。

我帮助过的人们 - SpeakingMax英语口语达人

I've passed through Grand Central Station when filming was happening. I don't know what they were filming though.

有一次我从那儿经过，正好有部电影在拍。但我不知道他们在拍什么电影。

电影里的中央车站 - SpeakingMax英语口语达人

So when you're seven you think, "I don't know.

你还小,所以你说,我不知道

耶鲁公开课 - 死亡课程节选

There's all these pleasures of experiencing art and seeing a beautiful sunset. And I don't know about you, but at least when I imagine the rat lever thing, it's a sort of simple, undifferentiated pleasure.

体验艺术是快乐的,观赏美丽的日落是快乐的，我不了解你们，但当我想象老鼠杠杆时，那是一种简单，单调的快乐。

耶鲁公开课 - 死亡课程节选