One of the swimmers got cramp and had to drop out of the race.有一名游泳选手抽筋了，只好退出比赛。He dropped out of the race with a pulled muscle after two laps.他在跑完两圈后因肌肉拉伤退出了比赛。She had to pull out of the race at the last minute.最后一刻她不得不退出比赛。He had injured his leg and had to drop out of the race.他的腿伤了，不得不退出比赛。