Eavesdrop on sb窃听
eavesdrop eavesdropping listen in overhear偷听
"the jealous man was eavesdropping on his wife's conversations"
同义词：listen in
V-I（不及物动词） If you eavesdrop on someone, you listen secretly to what they are saying. 窃听
The government illegally eavesdropped on his telephone conversations.
政府非法窃听了他在电话里的通话。