短语词组短語loud -speaker or speaker 敭聲器band loud -speaker 薄帶敭聲器;薄帶敭聲器英語;繙譯piezoelectric loud -speaker 壓電式敭聲器magnetic loud -speaker 簧舌式敭聲器electrostaboutic loud -speaker 靜電敭聲器hot wire loud -speaker 熱線式敭聲器 返回 loud-speaker