坚持控制人口数量，提高人口素质。
We should continue to control population growth and improve the quality of the population.
续严格控制人口数量，提高全民人口素质。
On the Effect of Population Quantity and Quality on Economic Increase;
继续严格控制人口数量，提高全民人口素质。
We should continue to control population growth and improve the quality of the population.
继续严格控制人口数量，提高全民人口素质。
We should continue to control population growth and improve the quality of the population.
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