1. 扩音器；扬声器；喇叭 A loudspeaker is a piece of equipment, for example part of a radio or hi-fi system, through which sound comes out.
名词扬声器；扩音器；喇叭；（收音机或音响设备的）扬声器网络音箱；高音喇叭；扬声器系统
