(~s)
A ~ is a person who is in charge of a library or who has been specially trained to work in a library.
N-COUNT
(~s)
A ~ is a person who is in charge of a library or who has been specially trained to work in a library.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012