跑垒员的用法和样例：
例句
-
一记瞎设让跑垒员跑上了第二垒。
The runner went to second base on a wild pitch. -
快速低球棒球比赛中为把跑垒员杀出局而掷出的低而快的球
A low and fast throw made to put a base runner out. -
打带跑的棒球比赛的一种战术或与其有关的，投球手开始投球且击球员试图击球以使跑垒员向前跑一垒
Relating to or being a play in which a base runner starts to run on the pitch and the batter attempts to hit the ball to protect the runner.
