amp·li·fierBrE/ˈæmplɪfaɪə(r)/NAmE/ˈæmplɪfaɪər/(alsoinformalamp)nounan electrical device or piece of equipment that makes sounds or radio signals louder放大器；扩音器；扬声器a 25 watt amplifier一台 25 瓦扩音器
接受
