The human appendix is a small dead-end tube connected to the cecum, or ascending colon, one section of the large intestine.

人的阑尾是个很小的一端闭锁的细长盲管，它的另一端连结盲肠，也叫升结肠，属于大肠的一部分。

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Ironically, it's natural selection that keeps the human appendix from shrinking away completely.

具有讽刺意味的是，正是自然选择使得人类的阑尾没有完全消失掉。

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