I think that might be the reason- no one knows what all their reasons were.

我认为也许这就是原因-,没有人知道他们所有的原因是什么。

耶鲁公开课 - 金融市场课程节选

And he says, I don't, "No one really knows where the Nile River starts."

他说，“我不，没人真的知道尼罗河的源头到底在哪里。”

神话有趣的课 - SpeakingMax英语口语达人

The fact is, no one really knows.

事实上，没有人真正知道。

耶鲁公开课 - 旧约导论课程节选

It has to stay relevant to the market, so nobody really knows where these interest rates come from because no one person sets them.

交易价格必须与市场价格一致,因此没有人能确定,利率的决定过程,因为个人无法决定利率

耶鲁公开课 - 金融市场课程节选

Orson Welles I should say the Orson Welles character has also faked his death, so no one except his immediate conspirators knows he's still alive.

另外,这个角色还装死，只有其同谋,知道他仍然活着。

耶鲁公开课 - 政治哲学导论课程节选