An aide avowed that the President had known nothing of the deals.

一位助理声明，总统对这些交易一无所知。

《牛津词典》

He kept silent as though he had known nothing about the matter.

他保持沉默，好像他对那件事情一无所知。

youdao

I tried to tell myself that I had known nothing of what she had done when I chose her.

我试图告诉我自己，在我选择她的时候对于她所做过的那些事情我一无所知。

youdao

She also said Commons authorities had known nothing about the Guardian order at the time.

BBC: Commons in court gagging warning

New England teenagers have known nothing but winning under Bill Belichick and Tom Brady.

FORBES: The Giants Have Better Fans

Their leader maintained that he had known nothing about what was going on.

FORBES: Ex-Barclays CEO Says Libor Is Not Diamond's First Brush With Scandal