In Europe, Netherlands, Belgium and Milan, Italy, suffer the worst air pollution, while in the United States it is the north- eastern corridor as well as Los Angeles, WHO experts said.
WHO专家说，欧洲的荷兰，比利时和意大利的米兰都在遭受严重空气污染的伤害，还有美国除洛杉矶外的东北方狭长地带。
In Europe, Netherlands, Belgium and Milan, Italy, suffer the worst air pollution, while in the United States it is the north- eastern corridor as well as Los Angeles, WHO experts said.
WHO专家说，欧洲的荷兰，比利时和意大利的米兰都在遭受严重空气污染的伤害，还有美国除洛杉矶外的东北方狭长地带。
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