play foul

例句：

1. 1. He always plays foul when he's playing basketball.
   他打篮球总是犯规。
2. 2. The referee played foul on the game, causing a lot of confusion.
   裁判在比赛中玩球了，导致很多混乱。
3. 3. The players were warned to play fair, not to play foul.
   球员们被警告要公平比赛，不要搞破坏。