( first languages)
Someone’s first language is the language that they learned first and speak best; used especially when someone speaks more than one language.
N-COUNT
( first languages)
Someone’s first language is the language that they learned first and speak best; used especially when someone speaks more than one language.
N-COUNT
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006