栏目简介：Chen Weihua/China DailyHaving lived in Washington DC for almost five years, I have seen the city growing, with new construction and renovation projects happening in many streets and neighborhoodsIn the longest flight for a DPRK missile, it reached an altitude of about 770 kilometers and flew for about 19 minutes over a distance of about 3,700 km, according to the Republic of Korea's military — far enough to reach the US territory of Guam, Reuters reported