Both player 2 and player 3 must play in the next football match.
2号球员和3号球员都必须参加下场足球比赛。
Either player 2 or player 3 must play.
球员2或3必须参加比赛。
If player 3 is playing, then player 6 can't play, and vice-versa.
如果球员3正在场上比赛，那么球员6就不能比赛，反之亦然。
If player 3 is playing, then player 6 can't play, and vice-versa.
如果球员3正在场上比赛，那么球员6就不能比赛，反之亦然。
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