考虑以下情况：性状t1和t2有如下内在联系，一旦生物有其中一种性状，那么它会同时拥有这两种性状。
Consider the following case: traits t1 and t2 are endogenously linked in such a way that if a creature has one, it has both.
没错，这个是一个复杂的情况，但是你所要做的就是考虑以下情况：罚球队员是明确的，收到了你的指令，并且将球向前踢了。
A tricky situation, but all you need to consider is this: the player taking the kick must be clearly identified, and having received your signal, he must kick the ball forward.
如果出现数据库信号量 0244 和 0245 并发现了以下情况，就可以考虑使用集群战略
You may want to pursue a clustering strategy if the database semaphores 0244 and 0245 appear and you notice the following
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