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

And I do know, as I have worked as a publicist, that people do, celebrities do call paparazzi

而且我也知道，因为我曾做过宣传的，有的人，名人，确实会给狗仔队打电话，

溺爱是一种伤害 - SpeakingMax英语口语达人

Yeah, good. So, they're actually helium atoms, helium ions. And this wasn't really important for the studies, it didn't matter that didn't know what they are but it's nice to kind of know now - that we do know what they were using.

氦粒子，这对他们的研究并不重要,他们并不需要知道它是什么,但我们最好知道,他们当时用的是什么。

麻省理工公开课 - 化学原理课程节选

We do know it exerts a force, so here's what you do.

我们只知道它施加了一个力,所以你应该这么做

耶鲁公开课 - 基础物理课程节选

I'm sure you all do know people who believe in it.

我肯定你们都认识一些相信这个观点的人

耶鲁公开课 - 死亡课程节选

So the exceptions are useful when you want to have the ability to say, I expect in general this kind of behavior, but I do know there are some other things that might happen and here's what I'd like to do in each one of those cases. But I do want to make sure that I don't let a value that I'm not expecting pass through.

所以当你希望有能力说,我希望一般是这样的行为,异常是很有用的,但是我明白还有一些其它的情况可能发生,我希望对每一种情况都这么做,但是我跟希望能保证,没有让一个预期之外的情况漏过去。

麻省理工公开课 - 计算机科学及编程导论课程节选

I do know someone who is fully supported by the government because he was in the army,

我知道这样一个人。他的学费完全由政府来缴纳，因为之前他在美国军队服役，

拿全额奖学金 - SpeakingMax英语口语达人

That's not as much in my area of specialization, but I do know that

这不太属于我的专业领域，但是我知道

对于未来的技术 - SpeakingMax英语口语达人

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

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

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

I mentioned previously that we do not know a lot about how the mechanical stimulation is being converted into chemical and electrical energy.

先前我曾说过,对于机械刺激到化学和电能的转换,我们还知之甚少。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

At least Russia and China do you know anything about their history?

至少应该有俄罗斯和中国,你们了解这两国的历史吗

耶鲁公开课 - 金融市场课程节选

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

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

Do you know any policies that the U.S. government is using to fight global warming?

你知道一些美国政府应对全球变暖的政策吗？

对全球变暖的政策 - SpeakingMax英语口语达人