柯林斯詞典megaphone /?m?ɡ??f??n/ (megaphones) 1. N-COUNT A megaphone is a cone-shaped device for making your voice sound louder in the open air. 麥克風(fēng)2. →see also bullhorn 返回 megaphone劍橋詞典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，話筒，擴(kuò)音器 返回 megaphone