also goldmine
If you describe something such as a business or idea as a ~, you mean that it produces large profits.
The programme was a ~ for small production companies.
N-SING
also goldmine
If you describe something such as a business or idea as a ~, you mean that it produces large profits.
The programme was a ~ for small production companies.
N-SING
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012