(~s)
If someone in a plane or ship sends out a ~ or a ~ message, they send out a radio message calling for help because they are in serious difficulty.
He raced to pick up the lifejackets while his stepmother sent out a ~ call.
N-COUNT
(~s)
If someone in a plane or ship sends out a ~ or a ~ message, they send out a radio message calling for help because they are in serious difficulty.
He raced to pick up the lifejackets while his stepmother sent out a ~ call.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012