But if you want to know the answer, and I knew it, but I forget what it is-- it doesn't matter.

如果你想知道答案,我曾经是知道答案的,不过我忘掉了,这不重要

耶鲁公开课 - 心理学导论课程节选

and I knew if I wanted to be good, as good as I wanted to be, I needed to come here.

而且我知道，如果我想变得更好，变得和我想的一样好，我就得到这里来。

和纽约的留学生 - SpeakingMax英语口语达人

And yeah, I know you know how to do it, but let's think about what might happen if I wanted to do that.

对，我知道你们知道该怎么做，那么让我们看看如果我,想要完成的话会发生什么。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you want to know something like when do you hit the ground, I think it's fairly clear what you have to do.

如果你想知道车子何时落地,我想你该做什么就很明显了

耶鲁公开课 - 基础物理课程节选

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

I want you to know if there is ever anything you want to say, you can be honest.

我想让你知道，如果你有任何事想跟我倾诉，你都可以诚实地跟我说。

Is there any 实战 - SpeakingMax英语口语达人

Then, I was talking it over with another graduate student and he said, well if you want to find out why don't you ask J.R. Hicks?

随后,我和另一位研究生讨到了此问题,他说,如果你想知道,干嘛不直接去问J·R·希克斯

耶鲁公开课 - 金融市场课程节选

And here's a little trick -- and again, we promised to point -- out little tricks of the trade -- if I know I want to execute the last command I typed that started with an m, bangm will actually figure out what that command was and redo it for me so I don't have to figure it out, or you can go back in time in a terminal window.

这里有个小技巧--此外，我们许诺指出行业中的,一些小技巧-,如果我知道我想执行我写入的上一个命令,是以m开头的，！m会明白那个命令是什么,然后为我恢复上次操作,所以我不需要明白它，或者你可以回到,那个终端窗口。

哈佛公开课 - 计算机科学课程节选

Right now I want to go out with Peggy Sue, but if I knew these true--It's not that you think, oh your roommate has made it up, that these are lies; these are slander.

现在我想和Peggy，Sue约会，但如果我知道这些事实，不是你所想的那样，你室友瞎编的，都是些谎话;,它们是诽谤。

耶鲁公开课 - 死亡课程节选

I can check it, so if this was part of some other computation, I want to know, did it find a perfect square or not?

我可以检验它,因此如果这是其它计算的一部分我想知道，它能否找到一个完全平方根呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

If I say x is 2, I want to know, what's the square root of 2, well if you're enough of a geek, you'll say 1.41529 or whatever the heck it is, but in general, this doesn't help you find the square root.

如果我说X等于，我想知道，2的平方根是多少，那么如果你足够书呆子你就会说,1。41529或者随便什么玩意儿，但是大体上，它不会帮你算出平方根。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you want to know how fast it's moving at a given time, if you want to know the velocity, I just take the derivative of this answer, which is 10-10t.

如果你想知道它在给定时刻的运动有多快,如果你想知道它的速度,我只要对这个式子求导,得到10-10t

耶鲁公开课 - 基础物理课程节选