(~s)
A ~ is a set of equipment for playing recorded music, or for making a band’s music able to be heard by everyone at a concert.
N-COUNT
(~s)
A ~ is a set of equipment for playing recorded music, or for making a band’s music able to be heard by everyone at a concert.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012