second base
n. [棒]二垒, 二垒手防御位置
例句与用法：
The runner went to second base on a wild pitch.
一记瞎设让跑垒员跑上了第二垒。
The defensive positions of first base, second base, third base, and shortstop considered as a unit.
内场，内野第一垒、第二垒、第三垒和被视为一个单位的游击手的防守位置
A pinch single; a pinch steal of second base.
替捕的一垒安打; 第二垒替补偷击
ph.
【棒】二垒; 二垒手职位