柯林斯词典megaphone /ˈmɛɡəˌfəʊn/ (megaphones) 1. N-COUNT A megaphone is a cone-shaped device for making your voice sound louder in the open air. 麦克风2. →see also bullhorn 返回 megaphone剑桥词典a cone-shaped device that makes your voice louder when you speak into it, so that people can hear you although they are not near to you 喇叭，话筒，扩音器 返回 megaphone