talk-back telephone对讲电话
talk-back system回答系统;对讲系统
building talk-back楼宇对讲
talk-back speaker通话扬声器
talk-back microphone对讲微音器
talk-back circuit联络电路
talk-back loudspeaker对讲扬声器
talk-back k对讲电话
PHRASAL VERB（动词词组） If you talk back to someone in authority such as a parent or teacher, you answer them in a rude way. 顶嘴
How dare you talk back to me!
你竟敢和我顶嘴！