这个引用必须存在于测试中并且在条件块前。
The reference must exist in the test and precede the conditional block.
这种设计可能会导致竞态条件，尤其是与Broadcast这样的块联合使用时更是如此。
This design, especially when combined with blocks like Broadcast, can lead to race conditions.
同条件养护试块应放置在适当地方。
Those for equal condition maintenance shall be placed at suitable locations.
它不是一块将我们和行动分隔的布幕，它是行动本身的一个条件。
Far from being a screen which could separate us from action, it is a condition of action itself.
它不是一块将我们和行动分隔的布幕，它是行动本身的一个条件。
Far from being a screen which could separate us from action, it is a condition of action itself.
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