暗中

He watched them secretly,through a chink in the wall.

他透过墙缝暗中监视他们。

She cherished a deep resentment under the rose towards her employer.

她暗中对她的雇主怀恨在心。

He groped his way in the dark.

他在黑暗中摸。

I developed a sneaky fondness for the old lady.

我暗中对这位老产生了好感。

A plot was hatched with secrecy.

一在暗中策划。