beat sb. on the post

例句：

1. 1. He beat his opponent in the final match.
   他在决赛中击败了对手。
2. 2. The team beat their rivals in the championship game.
   该队在锦标赛中击败了对手。
3. 3. She beat her sister in a friendly game of tennis.
   她在一场友好的网球比赛中击败了她的妹妹。