The thinking has been that as tyrannosaurs developed to a truly giant size, they needed to modify their entire skeleton so they could function as predators.
之前的想法一直是，在霸王龙形成庞大体型的进化过程中，它们需要调整全身骨骼的大小，以便能够适应食肉动物的行动。
The thinking has been that as tyrannosaurs developed to a truly giant size, they needed to modify their entire skeleton so they could function as predators.
之前的想法一直是，在霸王龙形成庞大体型的进化过程中，它们需要调整全身骨骼的大小，以便能够适应食肉动物的行动。
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