Thick as it is, it can be ground into a needle sooner or later, only if you persist every day.

铁棒是很粗，只要你每天坚持磨，总有一天能把它磨成针。

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And when you persist objects, they can only be persisted in the same atomic transaction if they are in the same entity group.

并且在持久化对象时，如果它们在相同的实体群中，那么它们只能被持久化到相同的原子事务中。

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If back in victory, often only embrace failure; if you persist in the difficult, often will get a new success.

如果在胜利前却步，往往只会拥抱失败；如果在困难时坚持，常常会获得新的成功。

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