But here is something that scientists now know: A team led by Professor Fu has reported the first genetic link to how much sleep we need.

VOA: special.2009.08.26

So we can go ahead and name our molecular orbital, just like we know how to name our atomic orbitals.

我们可以继续命名分子轨道，就想我们知道如何命名原子轨道一样。

麻省理工公开课 - 化学原理课程节选

So in order to, to change the... you know, how we share resources,

所以为了改变这……，我们怎样分配资源，

想要消除不平等 - SpeakingMax英语口语达人

"We need an army of people who are equipped to know how to work at all levels and all scales, from protecting animals in the wild to providing shelter to them in zoological parks if necessary."

VOA: special.2010.06.22

All right. So let's look at some of these wave functions and make sure that we know how to name all of them in terms of orbitals and not just in terms of their numbers.

好，让我们来看一下,这些波函数,并确定我们都知道,怎么用轨道,而不仅是量子数来命名它们,一旦我们可以命名它们。

麻省理工公开课 - 化学原理课程节选

When I used to know you so well Yeah, yeah, yeah How did we get here?

VOA: standard.other

So we have this condition that's established in a quantity that we know how to calculate.

在种种条件下,我们得到了一个我们知道如何计算的物理量。

麻省理工公开课 - 热力学与动力学课程节选

We've worked on 10 or 12 floats, so we know basically how to go about this,".

VOA: standard.2009.12.30

He's a monopoly; so she's a monopolist, so we know how to figure out monopoly quantities from what we did in 115 or equivalent courses.

她会形成垄断,我们都知道如何计算垄断产出,在115或者类似课程中都学过的

耶鲁公开课 - 博弈论课程节选

We did not know how quickly it was going to move. flu, you cannot catch up.

VOA: standard.2009.05.03

Come on. We know how to do this.

我们都知道该怎么做。

麻省理工公开课 - 计算机科学及编程导论课程节选

"Before we not that smart. Now we know what going on, how much they cheat us, how much they want us to be slave for them."

VOA: standard.2010.05.14

We know what prejudice has wrought historically and socially, so how can we try to vindicate it in this way?

偏见对历史对社会都发生了作用，所以我们如何证明偏见是正确的呢？

耶鲁公开课 - 文学理论导论课程节选

When I used to know you so well YeahBut how did we get here?

VOA: standard.other

Why aren't I allowing the soul theory to say, "Don't blame us. We don't know how to explain it yet."

而又为什么不允许灵魂理论说,别责怪我们,我们只是还不知道怎么去解释

耶鲁公开课 - 死亡课程节选

When I used to know you so well But how did we get here?

VOA: standard.other

The Elder Brother is issuing this theory without any consideration, - obviously, whatsoever of earthly reality and we're shocked by -- I don't know how else to put it.

大哥没有经过任何思考就提出了这个理论，显然，尘世间的任何事实都让我们震惊了-,我不知道怎么去说。

耶鲁公开课 - 弥尔顿课程节选

"And,it is very important that the United States deal with the military, know who they are, know the individuals, and then be able to appraise how we might affect change."

VOA: standard.2009.11.02

I would ask you to see how such energy level diagrams rationalize what we know to be true.

我想问你，看看这种能级图,如何证实我们知道的是正确的。

麻省理工公开课 - 固态化学导论课程节选

"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

So maybe you could figure out how to use what we know about molecular biology, to engineer a new virus that's still immunogenic, but not pathogenic any longer.

也许你能指出如何使用,分子生物学的有关知识,来设计一个既能产生免疫性,但又不再有致病性的新病毒

耶鲁公开课 - 生物医学工程探索课程节选

"More and more, there are actually people aware of the fact if we want to know more about medicine or actually how to treat patients with all these health care issues, we have to look to the past as well."

VOA: standard.2010.05.05

Of course, we have to also know how to plug in the numbers so we can pass all the tests, but it's good to understand the nature of the edifice set up by Newton.

当然,我们首先要知道怎么代数字,这样我们考试才能过关,但是如果能理解,牛顿的这一伟大杰作的本质就更好了

耶鲁公开课 - 基础物理课程节选

This brought in their writing skills. After we talk about all of them, we will write the numbers down - now this is three and two more - before we even tell them the plus sign, you know,how to join things together."

VOA: standard.2010.08.10

And all of those long notes are coming on the downbeat so that's how we start to hear that as a downbeat and that's how we know to make our hand go down at that point so that's one way.

所有的长音都出现在重拍上,这就是我们怎么判断出重拍,如何判断出该什么时候把手往下摆的,所以那是一条途径

耶鲁公开课 - 聆听音乐课程节选

Today,that is not enough any more." "When you want to buy the latest it bag, you also want to know how it is produced And that is the biggest change that we have seen in our business since the hem-lengths went below the knee."

VOA: standard.2010.01.31

This is very important,which is why I am doing it: "If we want to know how fast a human being can run, then it is no use to average out the speed of a "good sample" of the population; it is far better to collect Olympic gold medal winners and see how well they can do.

这话非常重要，是我作这个研究的原因：,“如果想知道人类最快能跑多快，那从好的样本中测出平均数是“,没用的;,而应该收集田径类奥运冠军的信息,看他们能跑多快。

哈佛公开课 - 幸福课课程节选

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

Well, we know how to declare variables here.

好的，我知道怎么样去声明变量。

哈佛公开课 - 计算机科学课程节选

I think that theological positions need to change and we know that can, look at how they've changed in Christianity regarding women, not perfect, but, regarding women, the end of human chattel slavery.

我认为一些相关的神学观点需要变革,这是完全有可能的,看看基督教对于妇女的观点的变革吧，虽然不算完美，但的确有所改变，还有奴隶制的废除。

普林斯顿公开课 - 人性课程节选