backhand groundstroke grip

例句：

1. 1. He is a professional tennis player who can backhand the ball with ease.
   他是一位专业的网球运动员，可以轻松地反手击球。
2. 2. The coach instructed the players to practice their backhand strokes during the break.
   教练指导球员们在休息时间练习他们的反手击球技巧。
3. 3. During the match, he used his backhand stroke to score a crucial point.
   比赛中，他用反手击球得分了关键一分。