( mental ages)
A person’s mental age is the age which they are considered to have reached in their ability to think or reason.
N-COUNT : usu sing
( mental ages)
A person’s mental age is the age which they are considered to have reached in their ability to think or reason.
N-COUNT : usu sing
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006