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生殖是性成熟男女双方将遗传物质通过生殖细胞传递给后代的过程，因此，正常的遗传物质和发育健全的性腺、性器官，是生殖过程中不可缺少的必要条件。提倡少生优生，让每个家庭中既无多子女的忧虑，又无没有子女的苦恼，是我国实行计划生育的一项基本内容。但一些家庭常因婚后
Reproduction is the process by which both sexes pass on their genetic material through germ cells to their offspring. Therefore, normal genetic material and well-developed gonads and sex organs are indispensable for reproduction. Advocating less-born eugenics so that every family has neither worries nor children’s distress is one of the basic contents of China’s practice of family planning. But some families are often married