监听; 窃听; 收听广播节目; 在一旁听人讲话

1. 收听,监听,偷听：line up排队,使排成一行 | listen in收听,监听,偷听 | live off靠...生活

2. 收听：listen for 倾听 | listen in 收听 | listen out 留心听

3. 插听,收听：listener-in 无线电收听者 | listen-in 插听,收听 | listening and ringing key 听唤振铃键

4. 收听;偷听;监听：listen 听, 留神听; 听从, 听信 (动) | listen in 收听; 偷听; 监听 | listenable 值得一听的 (形)

1. 偷听；监听
If you listen in to a private conversation, you secretly listen to it.

e.g. He assigned federal agents to listen in on Martin Luther King's phone calls.
他派了联邦探员去窃听马丁·路德·金的电话。

4. listen in在线翻译

verb

1. listen quietly, without contributing to the conversation

2. listen without the speaker's knowledge

e.g. the jealous man was eavesdropping on his wife's conversations

Synonym: eavesdrop