请输入您要查询的英文单词：
单词
ˌpublic-adˈdress ˌsystem
释义
ˌpublic-adˈdress ˌsystem
NOUN
C
a system of electrical equipment used for speaking or playing music in a large building or area . The more usual word is PA system . 有线广播系统；扩音系统