You cannot say I am not a good host.

你不会说我这个主人不称职吧？

youdao

If it is the case, I cannot do anything other than say sorry to you!

如果是这样的话，我除了向你说声对不起，已经不知道该做些什么了。

youdao

You cannot say prove it to me first and then I will do it, because people will never believe what somebody else tells them.

你无法说先给我证明看看然后我才做，因为人从不相信别人告诉他们的事情。

youdao

You cannot say, "I never heard of it. I don't know where it came from."

你就不能再说,"我从没听说过,我不知道它是怎么来的"

耶鲁公开课 - 基础物理课程节选

You cannot say, "I will look it up."

你不能说 "我得查查"

耶鲁公开课 - 基础物理课程节选

And finally, to all of you, truly, our extraordinary volunteers and organizers -- I just want to say two words that my husband and I simply cannot say enough, and that is thank you.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

But I have said this before, and I know, Iowa, you heard me say it: He cannot do this alone.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

But let me just tell you something -- and I have said this before and I will say it again -- he cannot do this alone.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event