助跑

例句：

1. 1. She ran a marathon in her first race.
   她在第一次比赛中跑了马拉松。
2. 2. The coach helped the runners warm up before the race.
   教练在比赛前帮助选手热身。
3. 3. The athletes need to run with assistance during the relay race.
   接力赛中运动员需要得到帮助才能完成比赛。