(~s)
An ~ is a person who is concerned with protecting and preserving the natural environment, for example by preventing pollution.
N-COUNT
(~s)
An ~ is a person who is concerned with protecting and preserving the natural environment, for example by preventing pollution.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012