Definition: to not tell someone about something Level: C2
你是不是有什么事瞒着我？
Is there something you're ___keeping ___from me?
他们瞒着我这件事。
They ___kept it ___from me.
他决定不把这个坏消息告诉他的父母。
He decided to ___keep the bad news ___from his parents.
