毕竟，这种情况在某些地方正在发生，尽管这种变化通常开始于食物链的顶端。
This is, after all, what is happening in other places, though usually the changes start at the apex of the food web.
毕竟，这种情况在某些地方正在发生，尽管这种变化通常开始于食物链的顶端。
This is, after all, what is happening in other places, though usually the changes start at the apex of the food web.
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