To solve this problem, bats have evolved strong and heavy bones near their shoulders, where they need more support.
为了解决这一问题，蝙蝠在其肩部附近区域进化出强壮且沉重的骨头，因为这肩部需要更多的支撑。
To solve this problem, bats have evolved strong and heavy bones near their shoulders, where they need more support.
为了解决这一问题，蝙蝠在其肩部附近区域进化出强壮且沉重的骨头，因为这肩部需要更多的支撑。
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