摘要
Editor’s Note:At the end of 2013,'China Dream' and 'Smog' were listed at the same time as two of the ten most popular Chinese words on the Internet in 2013. On the one hand,the two words are different from the others because they are both closely related to urban development; on the other hand,they are also quite different from each other,even opposite in the context of urbanization,because they have a positive and negative meaning respectively for urban development. Although the phenomenon of smog is not new in Beijing,it has become more and more serious since the beginning of the second decade of the 21st century,happening more and more frequently and impacting more and more regions. It was reported that,in 2013,there were in total four heavy smogs happening in China,which hit about 30 provinces including Beijing,and there were only fi ve non-smogy days in Beijing in that year. Although it cannot be asserted that the happening of smogs is a
