Little did I know who the boy was. Hardly could I believed it true.

Little did he know that the police were around.

他一点也不知道警察就在旁边。

Never have I heard of such a name.

我从没听说过这样一个名字。

Hardly could she believe her own eyes.

她几乎不敢相信自己的眼睛。

Little置于know, think, Imagine, dream, guess, expect等有关思考,意识 的动词时,等于not at all

Not until he came back did his mother go to bed. Cf. His mother didn’t go to bed until he came back. It was not until he came back that his mother went to bed.