A player allows another player in the game to commit a Game Play Error and does not point it out immediately.
牌手容许游戏中的其他牌手犯下了游戏行动失误，且未立刻指出该错误。
There are actually several things going on here. The first is that a player committing a Game Play Error can never earn Failure to Maintain Game State. The only person that can get Failure to Maintain Game State is the opponent. A player earns Failure to Maintain Game State when they do not catch an error made by the opponent. Also note that if a player points out the opponent’s error right away he or she does not earn this infraction. For example, if Abe casts Wrath of God for RRRW and Ned notices before any further actions are taken, Ned will not receive Failure to Maintain Game State.
这句话实际上包含几方面内容。首先就是违反游戏规则的牌手永远不会获得未维护游戏状态处罚。唯一可能获得未维护游戏状态处罚的是他的对手。牌手在未发现其对手违反规则时获得未维护游戏状态。另外请注意，如果牌手立刻指出了对手的错误则不会获得此违规。例如，如果Abe支付RRRW施放神之愤怒，Ned没有进行任何其他动作就立刻注意到了这点，那么Ned不会获得未维护游戏状态。

If a judge believes a player is intentionally not pointing out other players’ illegal actions, either for their own advantage, or in the hope of bringing it up at a more strategically advantageous time, they should consider an Unsporting Conduct — Cheating infraction.
如果裁判认为牌手系出于“此状况对己方有利”，或是“希望等到战略上对己方更有利的时候再提出”这一类的考量，而蓄意未指出其他牌手之违规行动，则应考虑适用“举止违背运动道德～作弊”之违规。
Generally we think of Cheating as actively and intentionally doing something against the rules and for an advantage. However, it may also be Cheating to notice your opponent doing something against the rules and not call a judge, or to only call a judge when it is to your advantage. For example, Abe controls a Juggernaut and forgets to attack with it. Ned says nothing, because he doesn’t want to take the damage. Depending on Ned’s knowledge of game rules and player responsibilities, this may be Cheating.
一般来说，我们认为作弊是主动地、故意地违反规则并寻求获益。但是，发现对手违规而不呼叫裁判，或是在对你有利时才呼叫裁判一样有可能是作弊。例如，Abe操控攻城巨车但是忘了用它攻击。Ned什么都没说因为他不想受到伤害。根据Ned对游戏规则和牌手责任的了解情况来判断，这有可能是作弊。

Not reminding an opponent about their triggered abilities is never Failure to Maintain Game State nor Cheating.
未指出对手之触发式异能的行为不属于“未维护游戏状态”或“作弊”。
This is a very important exception to the “you must point out your opponents errors” rule. Missed triggers are handled differently. A player is allowed to not point out his or her opponents’ missed triggers. Since it is allowed, it cannot be an infraction. See the Missed Trigger section for more details.
这是对于“你必须指出你对手的错误”这条规则的一个重要例外。遗漏触发的处理方式不同。规则允许牌手不指出其对手的遗漏触发。既然这是允许的，那自然不是违规。查看遗漏触发部分以获得更多细节。

A. A player’s opponent forgets to reveal the card searched for by Worldly Tutor. It is not noticed until the end of turn.
A. 牌手的对手忘了展示处世导师/Worldly Tutor所搜寻的牌。但到了回合结束才被注意到。
B. A player does not notice that their opponent has Armadillo Cloak on a creature with protection from green.
B. 牌手没注意到对手的穿山甲外衣/Armadillo Cloak结附在了具反绿保护异能的生物上。
In both of these cases, the player’s opponent committed a Game Rule Violation, and the player didn’t notice it right away.
在这两个例子中，该牌手的对手违反了游戏规则而该牌手没有立刻发现。

If an error is caught before a player could gain advantage, then the dangers of the ongoing game state becoming corrupted are much lower. If the error is allowed to persist, at least some of the fault lies with the opponent, who has also failed to notice the error.
如果失误能在有牌手能够藉此获得优势之前发现，则对于接下来游戏状态的伤害就会减少许多。
This is really just a fancy way of saying “the sooner an error is caught, the less likely it is to cause a large problem.” It should be a fairly obvious statement.
这只是“错误越早被发现，越不容易造成大问题”的另一个说法。这很显然是一句正确的话。
如果失误持续下去，对手必然也有错，因为他也没有去注意到该失误。
The key point here is that both players are responsible for the game state. If the opponent is being observant, he or she can help catch a player’s error before the problem becomes more severe. It doesn’t matter who gained an advantage from it. Note that there are some situations where one player controls the effect, and the other player takes the action, but did so in a way that caused an error. In this case, please refer to the Game Rule Violation section, as there are some cases where both players have committed the same infraction.
这里的关键点在于，双方牌手都要为游戏状态负责。如果对手足够敏锐，他可以在错误变的更严重前发现它。谁从中获得优势并不重要。请注意在某些情况下一个牌手操控效应，而另一个牌手采取行动，却以错误的方式采取了这些行动。在这种情况下，请参阅违反游戏规则部分，其中某些例子是双方牌手同时犯下违规。