public-address system
Longman Dictionary of Contemporary English 5++LDOCE 5++ˌpublic-adˈdress ˌsystem noun [countable] x-refa pa 有线广播系统；扩音系统
Examples from the Corpus
public-address system• Stern warnings broadcast over the student public-address system in the evening of 8 October exacerbated the situation.• Or persuade the operators of a slow train to Ulan Bator to put his Beatles cassette on the public-address system?• In an even more pointed joke, Werner Heisenberg was repeatedly paged over the public-address system for two days running.From Longman Business Dictionarypublic address systemˌpublic adˈdress ˌsystem abbreviation PA noun [uncountable] a system used to make voices and music louder so that they can be heard by everyone in a public place or buildingˌpublic-adˈdress ˌsystem nounChineseSyllable
a Business pa Corpus
