After readying a possible nuclear test, it seems that North Korea's nuclear technicians are entitled to some downtime.
원문출처 : http://www.cnn.com/2017/04/20/asia/north-korea-nuclear-site-volleyball/index.html
원문출처 : http://www.cnn.com/2017/04/20/asia/north-korea-nuclear-site-volleyball/index.html