Stay home. Don't you know your poor old mother sits there, night after night, waiting to hear your steps on the stairs?"

VOA: special.2009.07.19

So if you haven't already, just glance at the person next to you, or say hello if you don't know them.

如果你还没有做好，那就看看你旁边的人,如果你不认识他们就跟他们打个招呼。

哈佛公开课 - 计算机科学课程节选

You are lost. You're in a new city and you're lost and you don't know where you're going.

你迷路了。你刚到一个城市，没法找到方向。你不知道你该怎么走。

How long课堂 - SpeakingMax英语口语达人

You know, it's like three dollars for something that's, I don't know, in my mind pretty luxurious."

VOA: special.2010.04.12

If you don't know why you're about to eat cake like that you will soon, but you know this.

如果你现在还不知道为什么将要吃到那样的蛋糕,很快就会知道的，你清楚这一点。

哈佛公开课 - 计算机科学课程节选

And one day you want to go to the cemetery or something, you can't do it because you don't know where they are.

VOA: special.2010.02.01

Does anyone have that in their brain somewhere for ready use? I don't, in fact, so it's actually okay if you don't know all your common ions, if you missed that part.

你们有谁有印象它们有什么用吗？,我当时是不知道，所以如果你们不记得,这部分也没有关系。

麻省理工公开课 - 化学原理课程节选

We leave you with "I Don't Know What To Do" from Pete Yorn and Scarlett Johansson.

VOA: special.2009.10.09

You want to talk about it systematically, but how can you talk about anything systematically if you don't know what it is?

人们总希望系统化地谈一件事，但是你一点都不了解它,怎么能系统化地谈它呢？

耶鲁公开课 - 文学理论导论课程节选

COSTELLO: "You gonna be the coach,too?" ABBOTT: "Yes." COSTELLO: "And you don't know the fellows' names?" ABBOTT: " Well,I should." COSTELLO: "Well,then, who's on first?"

VOA: special.2009.03.09

It could be a collection of, ah, you know, I don't know, batting averages of somebody or other.

而且它也可以是一个所有质数的集合，嗯，有个很有趣的事情要做,它可能是一个，啊，你知道的。

麻省理工公开课 - 计算机科学及编程导论课程节选

But you don't have to be very smart to know what his trouble is.

VOA: special.2009.11.29

Maybe you don't even know what this-- do you all know what carbon paper-- I guess you do know what this is, right?

或许你们甚至都不知道这是什么东西-,你们都知道复写纸吗-,我猜你们都知道这是什么，对吧？

耶鲁公开课 - 金融市场课程节选

"Don't pretend that you don't know what you have done to me."

VOA: special.2009.05.30

Now, the point of this illustration, again, is that it shows that you don't know this.

这个例子同样表明，你对这样的情况并没有察觉。

耶鲁公开课 - 心理学导论课程节选

BENNY: "You don't have to finish it, you know."

VOA: special.2009.03.09

But there's one thing to think you know, you think of I don't know if you've seen the Monty Python's skit.

但是另外，当您想到,不知道您看没看过Monty，Python的滑稽短剧？

普林斯顿公开课 - 人性课程节选

So instead of watching bullying take place or joining in with the bullying, these programs teach bystanders how to stand up and be supportive of the kids who are being victimized and to say 'You know we don't do that here, we don't engage in those behaviors.'" Professor Swearer advises parents and teachers to try to get children to talk to them about being bullied.

VOA: special.2010.05.06

Because you don't know how much more time you've got-- You can make a guess based on statistics, but as we saw, there's wild unpredictability.

因为你不知道你剩下多少时间-,你可以根据数据进行猜测，但是我们都知道，不可预见性太难把握。

耶鲁公开课 - 死亡课程节选

I don't even know what you're... How... What are you talking about?You want me to go away? I can't...

VOA: standard.other

He seems to be saying, " "I know something you don't know."

他好像是在说，“我知道一些你们不知道的事“

耶鲁公开课 - 政治哲学导论课程节选

No, why do you keep arguing with me?You just need them. - ERIC: You're gonna get frostbite!- I don't even know.

VOA: standard.other

Some may or may not be useful, but you just don't know.

有些可能有用,有些可能没用,但你们现在还不知道

耶鲁公开课 - 基础物理课程节选

I don't know if you're aware of this, but these honorary degrees are apparently pretty hard to come by.

VOA: standard.2009.05.17

In this case, V = /P. Have two quantities and the number of moles gives you another property. You don't need to know the volume. All you need to know is the pressure and temperature and the number of moles to get the volume.

以及气体的摩尔数,就可以得到第三个量,知道压强，温度和气体的,摩尔数就可以推导出气体的体积,这称为状态方程,它建立了状态函数之间的联系。

麻省理工公开课 - 热力学与动力学课程节选

Yeah, and, you know, if I don't get out now, then I'm just gonna be stuck here like Mom.

VOA: standard.other

Okay, first of all, because everything relies on self-report there's no machine, for the most part, that can do objective measures of this, you don't really know when people are telling you what they're eating.

好,首先,因为任何事都是建立在自觉上,大多数环节没有机器参与,这样的方式比较主观,你并不需要,人们告诉你他们所吃的是否真实

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Don't you know we in a war here? Don't you know we in a war here? He's cool.He's one of us.

VOA: standard.other

Or perhaps, you could be trying to explain that you don't know whether you can do something or not by a certain date.

又或者，你正在试图解释你没法确定你是否能在一个指定日期前做完某件事。

I don't know 课堂 - SpeakingMax英语口语达人

you don't know all these things. You don't know the history and you don't know the reasons.

你不知道全部的事情。你不知道那些历史，也不知道原因。

美国的博物馆教育 - SpeakingMax英语口语达人