I can't go down to the registrar and say, you know, I'd really like to do it at another time.

我不能去和登记的人说，我想要换个时间。

麻省理工公开课 - 固态化学导论课程节选

I don't really know what I do in my free time in London.

我真的不知道，在伦敦我没事的时候该干什么。

生活费很高 - SpeakingMax英语口语达人

I didn't know what else to do, and I read one book that really influenced me.

我当时不知道还能干什么,所以就读了本对我影响深远书

耶鲁公开课 - 1871年后的法国课程节选

I don't know how to do it really.

我不知道要多快才行。

麻省理工公开课 - 热力学与动力学课程节选

Well, I suppose one possible response would be, "You know, you couldn't really do that.

我想可能会有人回应说,你知道,你其实并不能真的那样做

耶鲁公开课 - 死亡课程节选

I will be also making them available at Allegra for people who would like to just purchase them already printed out so you don't do it yourself, but I know some people really prefer to work online--and certainly for the first week of reading, you can get started because it is online.I don't think things will be available at Allegra's until probably tomorrow afternoon.

我也同样会让这些书的纸质版,能够出现在学校书店这样喜欢读纸质版的同学,就不用到处去买了，但我知道有一些学生更喜欢,在网上阅读，当然第一周的阅读材料都已经放在，放在网上了你们可以开始阅读，所有的阅读材料,在明天下午后都能在学校书店里买到。

耶鲁公开课 - 旧约导论课程节选

I don't know the facts. If I could really do it right, I'd now open the door and bring in our guest physiologist, who would then provide the facts that I'm--what I'm about to go is "Blah, blah, blah."

我不懂这些,如果真要讲这些,可以打开门请一个客座生理学家进来,他会讲一些理论,对于我来说...会觉得很厌烦

耶鲁公开课 - 死亡课程节选