Exact etiological factors of male infertility is called idiopathic male infertility.
无明显病因的男性不育，称之为特发性男性不育。
In industrial countries, the best-known current treatment for infertility is a process called in vitro fertilization.
在先进的工业国家，最有效治疗不育的方法就是试管婴儿。
In industrial countries, the best-known current treatment for infertility is a process called in vitro fertilization.
在先进的工业国家，最有效治疗不育的方法就是试管婴儿。
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