(~s)
A ~ is a piece of equipment on which you jump up and down as a sport. It consists of a large piece of strong cloth held by springs in a frame.
N-COUNT
(~s)
A ~ is a piece of equipment on which you jump up and down as a sport. It consists of a large piece of strong cloth held by springs in a frame.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012