(~s)
A ~ is an expression on your face that shows none of your feelings. (INFORMAL)
In business a ~ can be very useful...
She managed to keep a ~.
N-COUNT
(~s)
A ~ is an expression on your face that shows none of your feelings. (INFORMAL)
In business a ~ can be very useful...
She managed to keep a ~.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012