( public address systems)
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.
N-COUNT
( public address systems)
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.
N-COUNT
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006