if we can't think what system it belongs to, that's tantamount to saying we really don't know what it is.

我们就不知道它从属于哪个符号系统，我们就不能认识它了。

耶鲁公开课 - 文学理论导论课程节选

I don't know what it is, but you look gorgeous tonight.

我不知道为什么，但你今晚真是美若天仙。

You look 实战 - SpeakingMax英语口语达人

Then we realize once again that we can only know what it is if we come to understand--in this case, probably, it's best to say a cultural system, understood as a semiosis, within which it appears.

这样我们就又明白了,只有在一个特定的文化系统中,我们才能认识一个符号。

耶鲁公开课 - 文学理论导论课程节选

I think it becomes 30 degrees for the freezing of water and 22.5 x 4, which I don't know what it is, 90 100 or something -- no, it's 90 I think.

我想水的冰点,应该变成了30度,22。5，4，我不知道是多少，大概100左右--不，我想是。

麻省理工公开课 - 热力学与动力学课程节选

He brings it up as if we know that this is what he's been talking about all the time.

他提出这个好像我们知道一样,这是他一直在说的东西。

耶鲁公开课 - 现代诗歌课程节选

If you don't have the units, then if you say the answer is 19, then we don't know what it means.

如果没有的话,比如你的答案是十九,那我们就不知道这是什么意思

耶鲁公开课 - 基础物理课程节选

So what the subject is, okay, so if it's something like, you know, buy such and such, a whole bunch of spam.

那么这个主题是，对，如果邮件是，很多关于购物的垃圾邮件。

哈佛公开课 - 计算机科学课程节选

And yeah, I know it comes built in, that's OK, what we want to do is use it as an example to look at it.

对，我知道这个方法可以通过内置的算法，来实现，这没关系，我们只是,把它当做一个例子来讲解。

麻省理工公开课 - 计算机科学及编程导论课程节选

In some ways they kind of feel like, "Okay,I know what the New Testament is, and I already know sort of what I think about it."

某种程度上，他们可能会觉得，“行了，我知道新约是什么，也知道我对它的看法“

耶鲁公开课 - 新约课程节选

Let's assume that I know what I'm earning next year; there is actually uncertainty about it.

假设我知道我明年会赚多少钱,虽然这通常都是不确定的

耶鲁公开课 - 金融市场课程节选

That's what we hope is the case, whether or not we know that it's the case.

那是我们所希望的情形，不论我们知道这种情况与否。

耶鲁公开课 - 死亡课程节选

It's best if you don't know what that is or even if you do mistakenly attribute it, misattribute it, to physical attraction, romance, intimacy, passion and commitment, it's love.

最好是如果你不知道是什么,甚至如果你错误认定，以为是生理吸引力，浪漫，亲密，激情和承诺，那是爱情。

耶鲁公开课 - 心理学导论课程节选

To figure out even what this thing is, let alone how to use it properly. So, you know, I'm sympathetic.

就连认出这是什么东西（都很困难），更别说正确应用它了，所以我很同情这点。

经常犯的失误 - SpeakingMax英语口语达人

This is one picture that probably you all know what it is when you see it, it's a familiar looking image.

这张图片,一眼便知其中乾坤,太眼熟了

耶鲁公开课 - 生物医学工程探索课程节选

And in these experiments we not only need to learn what has been learnt, but also have to learn what it is that we don't know.

在这些试验里我们不仅,要知道已知的知识，还要知道,我们不知道的内容。

麻省理工公开课 - 媒体、教育、市场课程节选

So in a sense it tells you this work of art is of a piece with what you already know; it's familiar in those ways, and you shouldn't be afraid of it.

在某种程度上,这告诉了你这件艺术作品,其实是你早已认识的东西;,你已经通过那些方式了解了它，不用怕它。

耶鲁公开课 - 1945年后的美国小说课程节选