play a double game

例句：

1. 1. She plays the piano beautifully.
   她弹钢琴弹得很好。
2. 2. The children are playingin the park.
   孩子们正在公园里玩耍。
3. 3.He played a crucial role in the game.
   他在比赛中扮演了关键角色。