But we certainly didn't have goals. I don't know if we had ever heard of Grammys at that point.

VOA: special.2010.04.19

So, if you feel there's not enough math used, I guarantee you that I certainly know enough eventually to snow the whole class, but that's not the point.

如果你觉得我用的数学太少,我可以保证,我知道的数学知识,足以难倒在座的所有人,但这不是重点

耶鲁公开课 - 基础物理课程节选

I don't know if it's the biggest, but it's certainly one of the best collections of stuff

我不知道那是否是最大的，但是绝对是最好的收藏之一。

世界的宝物都聚于此 - SpeakingMax英语口语达人

"These are only their first Olympics." "And being at home, I don't know how they stood the pressure, because I certainly couldn't.

VOA: standard.2010.02.23

So hopefully, the first experiment he did, which I know that they certainly did do was maybe it's just background noise, right?

做的第一个实验，我相信他们肯定,是这样做的？

麻省理工公开课 - 化学原理课程节选

"I'm very happy about it." "I don't know whether this will be my main stopping point or not, but it certainly does give meanother option."

VOA: standard.2010.07.28

I don't know if that's true of you, but it certainly is true of people of my generation.

我不知道你们是不是也这样,但对于我们这代人来说确实如此

耶鲁公开课 - 古希腊历史简介课程节选

I don't think we know exactly what's going to happen but it's certainly possible that we could get very sluggish growth over the next year or two and possibly even growth could stall out if it doesn't get underway,".

VOA: standard.2009.12.20

I don't know what it takes to replicate that in China, but I certainly hope one day there will be a place in China that looks like Silicon Valley.

无法想象如何在中国复制一个硅谷，但我希望在将来,中国会有类似硅谷的地方。

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

You know, I certainly wouldn't mind if Bill Gates give me a million dollars.

我当然不会介意,盖茨给我一百万。

耶鲁公开课 - 公正课程节选

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 how close they were, but he certainly learned a few things from Nabokov.

我不清楚他们的关系如何，不过他肯定从Nabokov学到了不少。

耶鲁公开课 - 1945年后的美国小说课程节选

If I told you 3x + 2y = 9 and 4x + 6y = 6, you certainly know how to solve for x and y, right?

如果我给出 3x + 2y = 9,和 4x + 6y = 6 这两个方程,你们肯定知道怎么解出 x 和 y,对吧

耶鲁公开课 - 基础物理课程节选