坚持控制人口数量，提高人口素质。
We persisted in controlling the size of the population and raising its quality.
我相信，仅此一项，就可以大大提高人口素质。
I believe that, alone, can greatly enhance the quality of the population.
新生儿疾病筛查可降低残疾儿发生，提高人口素质。
Disease screening for newborn could reduce disability children and improve population quality.
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