"that are against this move-are asking is this, 'How do we know that the Americans and the West are basically going to let the Russians live up to their promise of giving the uranium back?

VOA: standard.2009.10.28

OK, so do we know anything so far that we can point to that would give us a departure?

好，到目前为止我们能在我们了解到的,东西中找出一些违背这些规律的例子吗？

麻省理工公开课 - 固态化学导论课程节选

So I mean philosophy can talk about how do we know we got a table here between us. Right?

比如，哲学可以告诉我们是怎么感知到,我们之间有一个桌子，对不对？

普林斯顿公开课 - 人性课程节选

How do we know that they are not going to keep it all?" The United States and allies France and Russia have supported the IAEA draft deal with Iran as a means to alleviate concerns that Tehran is using its nuclear program to develop atomic weapons covertly.

VOA: standard.2009.10.28

OK, so now the question is, how do we know the first place that this is a suitable reductant?

好的，现在的问题是，我们如何能知道第一步中,镁是一个合适的还原剂？

麻省理工公开课 - 固态化学导论课程节选

"Vice President Lyndon Johnson has left the hospital in Dallas, but we do not know to where he has proceeded.

VOA: special.2009.08.16

Since what we want to know is whether the soul is immortal, how do we know it can't break.

既然我们想知道,灵魂是否不朽，我们怎么知道它会不会破裂呢。

耶鲁公开课 - 死亡课程节选

why,when we do not sleep, we do not function well. We just do not know much about sleep at all."

VOA: special.2009.08.26

How do we know that everyone choosing 1 is the Nash Equilibrium in the game where you all chose numbers?

我们怎么知道在那个数字游戏中,选择1就是这个博弈的均衡呢

耶鲁公开课 - 博弈论课程节选

But we do know that the violence between the Earps and the Cowboys did not end at the OK Corral.

VOA: special.2010.02.15

The humans will become like gods, knowing good and evil, ; Not because of some magical property in this fruit; And it's not an apple, by the way, Do we know what the fruit is?

人类能像上帝一样，分辨善恶，不是因为这果实有魔力;,顺便提说一下，它并不是苹果，我们知道那个果实是什么吗？

耶鲁公开课 - 旧约导论课程节选

We all know that some people do not seem as emotionally strong as others when life gets difficult.

VOA: special.2009.06.24

The second question is: from the pedagogical perspective, not from the business perspective, but from the pedagogical perspective, do we know what the learning system is all about?

第二个问题是：,从教学法的角度看，不是商业视角，而是教学法的角度，我们明白什么是,学习体系吗？

麻省理工公开课 - 媒体、教育、市场课程节选

Another is that we do not necessarily know what drives us to do the things we do.

VOA: special.2010.04.13

When they look at the price of a company, how do we know whether the price at which you're buying is reasonable?

当他们看到公司股价的时候,怎么知道买入的价格是合理的呢

耶鲁公开课 - 金融市场课程节选

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

VOA: special.2009.10.09

How do we know this always stops? I mean, I ran three trials here, and it did. But how would I reason about, does this always stop?

我指的是我在这儿试了三次，它都停了，那这是为什么呢？,它总是会停下么？

麻省理工公开课 - 计算机科学及编程导论课程节选

The meaning of buff that we do know about is one that describes a person.

VOA: special.2009.05.17

But that formulation seems in many ways to be question begging. How much precision does the subject allow? How do we know?

所允许之外的精准,但这样的逻辑本身即,在很多方面启人疑窦？

耶鲁公开课 - 政治哲学导论课程节选

"I am happy." he said, "that I was the first one to open the door -- to let everyone know we could all do it."

VOA: special.2010.03.07

OK, so what do we know so far?

好，现在我们讲到哪了？

麻省理工公开课 - 热力学与动力学课程节选

Now,we admit that we do not know how this expression developed.

VOA: special.2009.06.28

Population intake: how do we know what to recommend to people to eat?

总体摄入量,我们如何知道,该建议别人吃什么

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If fact,we do not even know if bees have knees!

VOA: special.2009.06.28

What do we know about human differences ? between different human groups?

我们怎么知道不同群体之间,有什么差异呢？

耶鲁公开课 - 心理学导论课程节选

What does he think of Valentine's Day? "I think it's actually a good opportunity to remember those things that we want to do on Valentine's Day you know,special things for the spouse or whoever you probably ought to do them year-round.

VOA: special.2010.02.08

How do we know it when we see it?

我们如何知道它是文学？

耶鲁公开课 - 文学理论导论课程节选

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

What do we know from research is that smiles are contagious.

研究证明笑有传染性。

哈佛公开课 - 幸福课课程节选

How do we know the mass of this is 5 kilograms?

我们怎么知道质量就是 5 千克呢

耶鲁公开课 - 基础物理课程节选