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单词
publicaddresssystem
释义
ˌpublic adˈdress (ˌsystem)
noun
[
countable
]
(
abbreviation
PA
)
an electronic system that is used to make music, voices, etc. louder so that they can be heard by everyone in a particular place or building
有线广播扩音系统;扩音系统
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更新时间:2025/5/11 22:11:36