backstop

n. 擋球網、接球手

背向停止

學術名詞

托架：測量學、電機工程、電力工程
擋住：電機工程、電力工程
止廻器：測量學
後障：海洋地質學

英文釋義

(baseball) the person who plays the position of catcher
(baseball) a fence or screen (as behind home plate) to prevent the ball from traveling out of the playing field
a precaution in case of an emergency
act as a backstop