6月23日,在中俄蒙三国元首共同见证下,三国有关部门负责人在《建设中蒙俄经济走廊规划纲要》上郑重签字。这份协议的签署,标志着“一带一路”首个多边经济合作走廊正式实施,中俄蒙三国互利合作迈入新的历史阶段。 On June 23, witnessed jointly by the heads of state of China, Russia, Mongolia and the Three Kingdoms, the heads of the relevant departments of the three countries solemnly signed on the “Outline for the Planning of Building an Economic Corridor between China and Mongolia.” The signing of this agreement marks the formal implementation of the corridor of the first multilateral economic cooperation such as the Belt and Road initiative and the mutually beneficial cooperation between China, Russia, Mongolia and the three countries has entered a new historical stage.