| 释义 |
back·channelBrE /ˈbæktʃænl/NAmE /ˈbæktʃænl/ nouna secret or unusual way of passing information to other people （传递消息的）秘密渠道，特殊途径(linguistics 语言学) a sound or sign that sb makes to show that they are listening to the person who is talking to them 言语反馈示意，反输，附应（以声音或示意作为对说话人的反馈） |