plural pens
plural pens
Learner's definition of BULLPEN
[count]
1
: a place on a baseball field where pitchers practice throwing the ball before they start pitching in a game(棒球场中的)牛棚,赛前投手练习区 2
: the pitchers on a baseball team who can replace another pitcher during a game(棒球队的)全体替补投手