擋球網,捕手
Backstop \Back"stop`\, n. 1. In baseball, a fence, prop. at least 90 feet behind the home base, to stop the balls that pass the catcher; also, the catcher himself. 2. In rounders, the player who stands immediately behind the striking base. 3. In cricket, the longstop; also, the wicket keeper.
backstop n : (baseball) a fence or screen (as behind home plate) v : act as a backstop