public-address systems是什么意思_词汇public-address systems用法例句_读音音标_翻译

public-address systems

美英

释义

public-address systems

常考释义
- un. 有线广播系统；机上广播系统；扩音系统
- 复数：public-address systems

单词详解

n.1.a system of electrical equipment used for speaking or playing music in a large building or area. The more usual word is PA system.

Public Address systems (PA systems) are commonly used in American malls, airports and grocery stores.

公共广播系统在美国的商场、机场、和杂货店普遍使用。

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