(~s)
Visual aids are things that you can look at, such as a film, model, map, or slides, to help you understand something or to remember information.
N-COUNT: usu pl
(~s)
Visual aids are things that you can look at, such as a film, model, map, or slides, to help you understand something or to remember information.
N-COUNT: usu pl
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012