You also know that there's some vaccines that are not yet available, for diseases that we would very much like to prevent.

你们知道现在还有一些疫苗,仍没有研制出来,都是针对那些亟需预防的疾病的

耶鲁公开课 - 生物医学工程探索课程节选

They said, "You know, you're not ready to go public yet because this is a young company."

他们说，你看，你们还没准备好上市,因为这公司还很年轻“

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

I think the simple fact of the matter is we don't know enough about consciousness yet to know whether or not it can be explained in physical terms.

一个简单的事实就是,我们对于意识了解甚少,还不知道是否能使用物理的方式对其进行解释

耶鲁公开课 - 死亡课程节选

I don't know if it exists yet or not.

我不知道是否存在。

麻省理工公开课 - 固态化学导论课程节选

V2 And there's going to be some volume V2 and some volume V1, but are not necessarily the same. Especially since the pressures are different. we don't know yet about temperature so I don't know what to say about these volumes because I don't know what the temperatures' are going to do.

这里的体积会变成2,这里的容积是V1，它们不必相等,尤其是当压力不相等的时候,我们还不知道温度,所以我不能说这里的容积,是多少因为我不知道,温度会怎样变化。

麻省理工公开课 - 热力学与动力学课程节选