"I don't think it's going to satisfy everybody. I think there are certainly a large number of Facebook users who have decided they really can't trust Facebook anymore."

VOA: special.2010.05.28

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 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

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

"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 certainly don't have that belief.

我当然也没有那个信念。

耶鲁公开课 - 死亡课程节选

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 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

I certainly don't want to assume they're always going to type a three-letter or a four-letter or a two-letter word I want some dynamism but that's fine because get string can get a string of any length, I can then use the string length function to just ask while the program is running how big is the string that I was handed?

当然我不能假设他总是,输入3个字符或4个字符,或2个字符的单词，我想要动态地分配,因为GetString可以获得任意长度的字符串，然后我可以使用strlen函数,来得到那个我传递的字符串,有多长？

哈佛公开课 - 计算机科学课程节选