英语词汇public address system怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	public address system
释义	public address system  Word forms: plural public address systems N-COUNT 扩音系统（缩略形式为PA） A public address system is a set of electrical equipment which allows someone's voice, or music, to be heard throughout a large building or area. The abbreviation PA is also used. 扩音系统（缩略形式为PA） The news was announced on the public address system at the high school. 消息是在这所中学的广播里宣布的。
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英汉双解词典包含141091条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。