When human started to walk upright, his pelvis became narrower


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送交者: hehe 于 2005-1-17, 04:22:52:

回答: The part about the purpose of an female orgasm is wrong 由 Enlighten 于 2005-1-16, 23:28:14:

to withstand the weight of his body. As a result, women go into labour to give brth.


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