It's very exciting, but if you think you know everything you don't need to learn, you don't belong to us. I always need to learn.

这很令人兴奋，但如果你认为,你什么知道，你不需要学习了，那么请你退出百度，因为人总是在学习。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

It's called, I don't know if you guys speak any Japanese, but it's called Bungo, the thing that we're focusing on.

我不知道你们是否会日语，但我们主要学习的东西被称作“豊后”。

最喜欢的一门课 - SpeakingMax英语口语达人

I don't know if you heard this morning, but there was news of the discovery of yet one more element.

我不知道你们今早听说了没，有一个新发现,一个新的元素的发现。

麻省理工公开课 - 固态化学导论课程节选

- You open Brooks and you find yourself really apart perhaps-- I don't know how well all of you are acquainted with the texts of Freud.

也许你们看布鲁克斯的作品时会觉得很头疼-,我不知道你们对弗洛伊德那几篇文章理解的如何了。

耶鲁公开课 - 文学理论导论课程节选

Well if I-- you know, with let me say it differently. I don't need to worry about how checking is done, it's handled inside of that function.

好，如果你们知道，抱歉，让我们换种说法,我不必担心检查工作,是则会么做的，这是在方法体内部进行的。

麻省理工公开课 - 计算机科学及编程导论课程节选

I don't know if you know the story, but Labyrinth Books is independent, it's not a chain, and independent bookstores are trying-struggling--to survive.

不知道你们是否了解,"迷宫书店"家是独立书店 而非连锁书店,对于独立书店来说,生存下去非常艰难

耶鲁公开课 - 金融市场课程节选

I was wondering if you'll be willing just to offer, I don't know if it's culty prayer, whatever you feel comfortable, maybe reciting just a few lines because I know your voice is exquisite.

你是否愿意为我们，我也不知道这是不是祷告，只要你觉得合适的，就为我们吟诵几句话可以吗,因为我知道你的声音非常的优雅。

普林斯顿公开课 - 人性课程节选

I don't know if you noticed it, but there are many, many examples.

这里有很多例子。

耶鲁公开课 - 1945年后的美国小说课程节选

I don't know if you can see those colors much at all, sorry about that.

我不太能确定你们是否能看清,这些颜色,不好意思

耶鲁公开课 - 美国内战与重建课程节选

I don't know if you realize how rare that is,in a college.

这在大学里很少见。

耶鲁公开课 - 新约课程节选

I don't know anything about are any of you from Arizona, I don't know.

我不知道你们有没有来自亚利桑那州的

耶鲁公开课 - 博弈论课程节选

Now,as you know,I don't believe in souls.

你们都知道，我是不相信灵魂的。

耶鲁公开课 - 死亡课程节选

Now I don't know if you can read it because it's a little blurry, but a diet program that's been successful over two thousand years; can't beat that kind of a track record.

我不确定你们能否读懂它,其内容有些模糊,但该减肥方案已有两千年的成功史,这个记录是难以打破的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I think if, you know, everyone sort of thinks about, I don't know, all being an entrepreneur. But if you're not,

我觉得，如果每个人都有做企业家的想法。
但是你如果不这样想，

要想成为事业家 - SpeakingMax英语口语达人

I don't know if you can see, probably not, what's written on here, so let me point out to you a few things.

我不知道大家是否知道，这很可能不是其中的一种，那么让我来为大家指出一些事实。

麻省理工公开课 - 化学原理课程节选

There's a very snooty phrase that-- I don't know if you ever heard it before.

有一个听上去很傲慢的短语,不知你们之前是否已经有所耳闻

耶鲁公开课 - 心理学导论课程节选