The notorious smog that blights Beijing improved sharply in the first quarter this year as measures to curb pollution took effect, according to Chinese data collated by environmental group Greenpeace.
根據環保組織綠色和平(Greenpeace)整理的中國數據，隨著整治污染的各項措施收到效果，籠罩北京的出名的霧霾在今年第一季度大幅好轉。
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