overheard
v. 偶然听到(overhear的过去式和过去分词)
If you overhear someone, you hear what they are saying when they are not talking to you and they do not know that you are listening.
I overheard two doctors discussing my case.
我无意中听到两位医生讨论我的病情。
...snatches of overheard conversation.
偷听到的片言只语
Only a uniformed guard stultified with boredom might have overheard them.
只有一名穿制服的无聊警卫可能偷听到了他们的谈话。
We talked quietly so as not to be overheard.
我们低声交谈,以免别人听到。
I told Lucy the news under my breath, but Joyce overheard me.
我低声地把这个消息告诉露西, 可还是被乔伊斯听到了.
I overheard them say they were dissatisfied.
我偶然听到他们说,他们不满意.
He was having to whisper in order to avoid being overheard by their nosy neighbours.
他不得不小声说,免得被爱管闲事的邻居们听到。