柯林斯詞典listen in (listening,listened,listens) 1. PHRASAL VERB If you listen in to a private conversation, you secretly listen to it. 偷聽(tīng) He assigned federal agents to listen in on Martin Luther King's phone calls. 他指派聯(lián)邦特工去竊聽(tīng)馬丁·路德·金的電話。 返回 listen in