The Elder Brother is issuing this theory without any consideration, - obviously, whatsoever of earthly reality and we're shocked by -- I don't know how else to put it.

大哥没有经过任何思考就提出了这个理论，显然，尘世间的任何事实都让我们震惊了-,我不知道怎么去说。

耶鲁公开课 - 弥尔顿课程节选

And you've asked several people on the street . "I just can't get there! I don't know where I'm going!" and

你在街边向几个行人问路。“我没法找到目的地了，我不知道该怎么走！”

How long课堂 - SpeakingMax英语口语达人

I don't know how you think of life insurance salespeople, but they have been pillars of the community.

我不知道你们怎么看待寿险推销员,但他们已然成为了社区的支柱

耶鲁公开课 - 金融市场课程节选

And this movie, i don't know if I would recommend it that much, it's... Perhaps I'm being too pC, but I'm not convinced that for the modern woman, hanging around waiting for your prince to come is really a good strategy.

这部电影我真不知道怎么推荐给大家,也许我已经老了吧,但我课不觉得现代的女性四处游荡,等待你的白马王子出现是个好策略

耶鲁公开课 - 博弈论课程节选

It has become a very... I don't even know how that happened.

它已经变成了一个非常……我甚至不知道那是怎么发生的。

肉品市场区的变迁 - SpeakingMax英语口语达人

I don't know about you, but this is so fun.

不知道你们怎么想的，我觉得实在是太有趣了。

麻省理工公开课 - 固态化学导论课程节选

How it got into my pajamas I'll never know."

至于它怎么进来的,我就不知道了"

耶鲁公开课 - 心理学导论课程节选

But notice what this does. The first thing it does is, it says, let's check and make sure x is greater than or equal to 0. If it isn't, notice what's going to happen. None of that block is going to get executed, and it's going to come down here and print out a useful piece of information, which says, hey, you gave me a negative number. I don't know how to do this.

做的是和以前一样的事情,但是注释它做了什么，第一件做的事情就是,程序说，要去检查并且确信x是大于等于0的，如果不是的话，请注意会发生什么,下面的代码都不会被执行,程序会到这里来然后显示一些有用的信息,信息会说，嘿，你给了我一个负数,我不知道该怎么弄这个了。

麻省理工公开课 - 计算机科学及编程导论课程节选