(~s)
A ~ is a course in which you study at home, receiving your work by post and sending it back by post.
I took a ~ in computing.
N-COUNT
(~s)
A ~ is a course in which you study at home, receiving your work by post and sending it back by post.
I took a ~ in computing.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012