“@BeijingAir: 11-18-2014 21:00; PM2.5; 158.0; 208; Very Unhealthy (at 24-hour exposure at this level)”只有这里有美使馆空气质量数据了
11-18-2014 21:00; PM2.5; 158.0; 208; Very Unhealthy (at 24-hour exposure at this level)
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