(~s)
A ~ is a type of bicycle that is suitable for riding over rough ground. It has a strong frame and thick tyres.
N-COUNT
(~s)
A ~ is a type of bicycle that is suitable for riding over rough ground. It has a strong frame and thick tyres.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012