释义 |
loud·hail·erBrE /ˌlaʊdˈheɪlə(r)/ NAmE /ˌlaʊdˈheɪlər/ (BrE ) (NAmE bull·horn ) noun an electronic device , shaped like a horn , with a microphoneat 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 |