ball check

例句：

1. 1. Before the game, we always do a ball check to make sure everything is in order.
   比赛前，我们总是做一次球检查，确保一切就绪。
2. 2. The coach instructed the players to do a ball check before every match.
   教练要求球员们在每场比赛前都进行球检查。
3. 3. During the game, the referee did a quick ball check to ensure fair play.
   比赛中，裁判进行了快速球检查，以确保公平竞赛。