You can use ~ to refer to the skills and intelligence people need to be successful in difficult situations, especially in a city. (AM INFORMAL)
The boys learned their ~ early.
N-PLURAL
You can use ~ to refer to the skills and intelligence people need to be successful in difficult situations, especially in a city. (AM INFORMAL)
The boys learned their ~ early.
N-PLURAL
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012