(~s)
A ~ is a piece of waterproof material which you put on the ground to sleep on when you are camping. (AM; in BRIT, use groundsheet )
N-COUNT
(~s)
A ~ is a piece of waterproof material which you put on the ground to sleep on when you are camping. (AM; in BRIT, use groundsheet )
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012