| 释义 |
loud·hail·erBrE /ˌlaʊdˈheɪlə(r)/NAmE /ˌlaʊdˈheɪlər/ (BrE) (NAmE bull·horn) nounan electronic device, shaped like a horn, with a microphone at one end, that you speak into in order to make your voice louder so that it can be heard at a distance 电子喇叭；扩音器 ➡ compare megaphone |