短語詞組短語loud -speaker or speaker 揚(yáng)聲器band loud -speaker 薄帶揚(yáng)聲器;薄帶揚(yáng)聲器英語;翻譯piezoelectric loud -speaker 壓電式揚(yáng)聲器magnetic loud -speaker 簧舌式揚(yáng)聲器electrostaboutic loud -speaker 靜電揚(yáng)聲器hot wire loud -speaker 熱線式揚(yáng)聲器 返回 loud-speaker