北京前几天才刚刚迎来了初雪，而现在却笼罩在一片雾霾中，这也让更多人开始担心空气的质量。
The thick fog came just two days after Beijing residents welcomed the city's first snow this winter, replacing their excitement with concerns over worsened air pollution.
北京前几天才刚刚迎来了初雪，而现在却笼罩在一片雾霾中，这也让更多人开始担心空气的质量。
The thick fog came just two days after Beijing residents welcomed the city's first snow this winter, replacing their excitement with concerns over worsened air pollution.
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