eavesdropping

he was branded a prying sneak for eavesdropping on intimate conversation.

他被指责为刺隐私的，总是偷听的亲密谈话。

Suddenly the kids,who had been eavesdropping,flew into the room.

突然间，一直在偷听的孩子们飞进来。

She knew you were going to have a baby. She must have been eavesdropping on your conversation.

她知道你们想有个孩子。她准是总在偷听你们的谈话。