参考资料： 维基百科英文词条：Orgasm 维基百科英文词条：Human sexual response cycle 外文文章：Female orgasm captured in series of brain scans Vance E B, Wagner N N. Written … From zhihu.com
Female animals are those that produce ova, which are fertilized by the spermatozoa of males. The main difference between females and males is that females bear the offspring — and that … From zhihu.com
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