Carbon monoxide is a poisonous gas that is produced especially by the engines of vehicles.
N-UNCOUNT
Carbon monoxide is a poisonous gas that is produced especially by the engines of vehicles.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012