我们的跑垒者在跌交前跑得又快又有成效.Our runner was going great guns until he tripped and fell.击出二垒安打:以二垒安打使跑垒者上垒或得分.To advance or score ( a runner ) by hitting a two - base hit.跑垒者滑进二垒.The runner slid into second base....