Black ice is a thin, transparent layer of ice on a road or path that is very difficult to see.
N-UNCOUNT
Black ice is a thin, transparent layer of ice on a road or path that is very difficult to see.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012