你觉得有人在窃听我们的电话吗?
Do you think someone is ___listening ___in on our phone calls?
怀疑有不当行为,她在他的办公室安装了窃听器来偷听他的会议。
Suspecting foul play, she bugged his office to ___listen ___in on his meetings.
这名记者被抓住偷听了私人谈判。
The reporter was caught ___listening ___in on the private negotiations.