1) and he doesn't know anything

而他毫无所知
2) I know nothing whatever about him.

我对他一无所知。
3) not cowed in the least; fearless

毫无所惧
5) He's absolutely clueless.

他毫无本事.
6) He had utterly been hardened at all shame.

他毫无廉耻。
补充资料:无所不知
1.什么事情都知道,没有不懂得的。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条