China -- North Korea's only global ally and biggest trading partner -- has put on a stoic face since Pyongyang successfully conducted its sixth nuclear test Sunday.
원문출처 : http://www.cnn.com/2017/09/04/asia/north-korea-china/index.html
원문출처 : http://www.cnn.com/2017/09/04/asia/north-korea-china/index.html