I am sure you recognize this as Stevens' "Anecdote of the Jar," but I will quickly quote to you the poem.

大家一定知道这首诗就是史蒂文斯的《坛子轶事》,但是我还是想快速地给大家读一下。

耶鲁公开课 - 文学理论导论课程节选

And it's like, I am pretty sure I'm in an acting class with like 30 kids next year,

它就像，我很确定我在的那个表演班明年会招大约三十个新生。

和话剧专业的朋友 - SpeakingMax英语口语达人

Do not think of a pink elephant for the next three seconds ? and I am sure no one thought of a pink elephant right?

在接下来的十秒钟里不要想粉色大象,我肯定没有人想一头粉色大象，是吗？

哈佛公开课 - 幸福课课程节选

Again it's like anyone who does important things it's hard to judge the whole picture and on that I am sure he has created value for the economy.

同理，对于那些做着重要事情的人们,很难估测大局,不过我很肯定的是,他已经为经济创造了价值。

耶鲁公开课 - 金融市场课程节选

I could have done this in another way but I am going to just be extra deliberate so I make sure that this copy ends with back slash zero and voila, now, I have a copy.

我可以用另外一种方式来处理,我确保这个拷贝由反斜杠0结尾,那样，现在我得到了一个拷贝。

哈佛公开课 - 计算机科学课程节选

I am convinced--even though I'm sure that the Toyota Motor Company didn't organize it this way— I am convinced that on my automobile when I do not plug in my safety belt that there is a bell ringing "DING, ding, ding, DING, ding, ding."

我相信,尽管我确信,丰田汽车公司不会这样组织,我确信在我车上,当我没有系上安全带的时候,会有响铃,"叮,叮,叮,叮,叮,叮"

耶鲁公开课 - 聆听音乐课程节选

I am not sure... Everyone was gushing about all the... I think it's modern arts.

我不是很确定……每个人都在滔滔不绝的讲……我认为是现代艺术吧。

喜欢毕加索吗？ - SpeakingMax英语口语达人

I am not sure which one they actually say.

我不确定他们实际上说哪一个。

美式英语和英式英语 - SpeakingMax英语口语达人

I don't know about that. I am not so sure." But then, we realized that like when we walk out that door, it's the whole world again. So you get sucked up by your group, by your sort of identity.

我不知道，不是很确定，然后呢，我们就意识到走出那个大门，又是一个完整的世界，所以你就会,被你的团体，你的身份所束缚。

普林斯顿公开课 - 人性课程节选

In this case, I probably want to make sure I use absolute value of x before I carry it on. Yes ma'am.

在这个例子中，我可能想确定,在进行测试前我用的是x的绝对值,什么问题？

麻省理工公开课 - 计算机科学及编程导论课程节选

We are living in very unusual times and I am sure that Ben Bernanke and other central bank presidents are losing sleep right now because this is a time to challenge monetary policy makers.

我们现在正生活在一个非常特殊的时期,并且我很肯定本？伯南克,和其他中央银行行长们,正在日夜担忧，因为,现如今是一个挑战货币政策制定者的时代。

耶鲁公开课 - 金融市场课程节选