A dangerous gray haze descended on Northeast China over the weekend, choking off schools, flights and industry and endangering citizens simply trying to breathe, according to local reports.
원문출처 : http://www.cnn.com/2016/12/19/asia/china-smog-red-alert/index.html
원문출처 : http://www.cnn.com/2016/12/19/asia/china-smog-red-alert/index.html