替班马匹

例句：

1. 1. The team needed an extra horse to replace the one that was injured.
   队伍需要一匹额外的马来替换受伤的那匹。
2. 2. The racehorse was a good substitute for the injured mare.
   这匹赛马是受伤母马的一个很好的替代者。
3. 3. The coach decided to use a substitute horse in the upcoming match.
   教练决定在即将到来的比赛中使用一匹替补马。