listen in

"listen in" Chinese translation ("listen in" in Chinese, "listen in" 中文翻译, "listen in"发音):

listen in (1) <登记者以外的人> 旁听[…][to] (2) 听[收音机][to] (3) 盗 [窃] 听 [电话、他人的谈话] [on, to] []