<p>It seems simple: an egg + sperm = one embryo. But if your sperm is &quot;few, vague and abnormal&quot; and your woman is premenopausal at age 37, things start to get complicated.</p>周满点了点头,鼓励了他一番,看到白善进门时她微讶,她先抬头看了一下太阳,“还没到吃饭的时候呢。”
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