在福利支出方面，空气污染每年给全球经济带来的损失高于5万亿美元，而对发展中国家的损害最为严重。
Air pollution costs the global economy more than $5 trillion annually in welfare costs, with the most serious damage occurring in the developing world.
在福利支出方面，空气污染每年给全球经济带来的损失高于5万亿美元，而对发展中国家的损害最为严重。
Air pollution costs the global economy more than $5 trillion annually in welfare costs, with the most serious damage occurring in the developing world.
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