population control
柯林斯词典
1. N a policy of attempting to limit the growth in numbers of a population, esp in poor or densely populated parts of the world, by programmes of contraception or sterilization 人口控制
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1. N a policy of attempting to limit the growth in numbers of a population, esp in poor or densely populated parts of the world, by programmes of contraception or sterilization 人口控制