I don't know how to evaluate everything Icahn has done but some corporate raiders have been unkind to employees.

我不清楚如何评估伊坎,做过的所有的事情，但是一些公司蓄意收购者,一直以来对雇员都不友善。

耶鲁公开课 - 金融市场课程节选

I don't think we have done a great job of being on the forefront of, you know, climate change policy,

我认为我们现在在制定环境政策的示范工作做得不够好，

喜欢环境法课程 - SpeakingMax英语口语达人

Because of this policy, I don't actually know when all is said and done whether at the end of the semester I'm any harder, whether I depart from the average or not.

因为这个政策，我其实不知道当所有的说完,和做完是否在学期结束我评分更严格，是否我偏离了平均水平。

耶鲁公开课 - 死亡课程节选

which basically, I don't really know they haven't done any examination or any test, any tests.

事实上，我真的不知道他们做过任何考试或者测试没有。

小心微型出租车 - SpeakingMax英语口语达人

I don't know. I think it can be done, I know...

我不知道。是可能的吧，我觉得……

理想是当密码专家 - SpeakingMax英语口语达人

Also, I don't know. What have we done?

我不知道。我们都做了什么？

与朋友们的回忆 - SpeakingMax英语口语达人