It wasn't until the 20th century, so almost 200 years later, that we learned how to do this.

在詹纳研制出天花疫苗二百多年后,直到二十世纪,我们才知道如何做到这一点

耶鲁公开课 - 生物医学工程探索课程节选

So putting that all together, I know that it must go through here again, and once again, i get a straight line.

把这些点连在一起,我知道它一定会经过这一点,这次我们又画出了一条直线

耶鲁公开课 - 博弈论课程节选

But we all know that people do fall in love, but souls would allow us to explain that.

但是我们都知道人会坠入爱河,而灵魂能够帮助我们解释这一点

耶鲁公开课 - 死亡课程节选

Sure, she goes away--we have to understand this: we know our mother goes away, but guess what?

当然，她有时必须离开--我们必须理解这一点：,我们知道妈妈走了，但是你猜怎么着？

耶鲁公开课 - 文学理论导论课程节选

We now know, and I'm going to talk about next time, lots of ways to do this, alternatives to this method of bioengineering.

我下节课会讲,我们现在知道,有很多方法能做到这一点,并能替代上述生物医学工程方法

耶鲁公开课 - 生物医学工程探索课程节选

So we can do this directly as long as we have certain types of information.

因此，只要知道了一定类型的信息,我们就可以直接做到这一点。

麻省理工公开课 - 化学原理课程节选

I think the more we think about it, the more we realize that we only know what it is if we know the system that it belongs to, which is to say, all of the things related to it which it is not. Right?

你们越仔细想这一点，就越明白，我们只有知道事物所属的符号系统,才能认识事物，所有事物都是和同一符号系统中的反面相关的？

耶鲁公开课 - 文学理论导论课程节选

The answer could turn out to be yes, for all we know at this point.

这个答案也许是肯定的,我们都知道这一点

耶鲁公开课 - 死亡课程节选

And I picked looking at methane so we could see if there are other factors that we're not considering, that we need to maybe tweak our model a little bit, and I think we'll find that we do if we take a look at a polyatomic molecule, methane, CH4 so c h 4.

我选择甲烷这个例子，我们可以看到,如果有一些我们没有考虑到的因素，我们需要修改一下我们的模型，我们看一看,甲烷CH4这个多原子分子，就会知道这一点，甲烷。

麻省理工公开课 - 化学原理课程节选

So people were dying of old age and that was really heart disease that was killing them they just didn't know, so it's multi-factorial and we'll talk about that.

老死的人实际是死于心脏病,只不过人们不知道这一点罢了,这是个多因素的问题,我们以后会进一步探讨

耶鲁公开课 - 生物医学工程探索课程节选