triple play

triple-play的词性：
n.Baseball （名词）【棒球】

1. A defensive play in which three putouts are executed during one turn at bat on two base runners and the batter, thereby ending suddenly the offensive threat and the inning.
三重杀：棒球比赛中防守一方在一次防守中使对方二个跪垒员和一个击球手出局的打法，从而解除了对方的威胁并终止这一局