近年来 ,东北亚各国 (地区 )在所属地方的共同努力下 ,在对外开放、地区开发、国际合作等方面发生着新的变化。东北亚区域各国的城市都在制定和实施各种开发计划 ,发挥着巨大的作用。但必须看到 ,目前仍存在着影响和阻碍区域合作的种种因素 ,而地方政府间各种交流的加强及贸易往来的扩大 ,在一定程度上会起到缓解国家间关系、减少国家纠纷、促进地区发展的积极作用。 In recent years, with the joint efforts of their respective subordinates, all countries and regions in Northeast Asia have undergone new changes in areas such as opening to the outside world, regional development and international cooperation. Cities in the countries of Northeast Asia are playing a huge role in formulating and implementing various development plans. However, we must realize that there are still various factors that affect and hinder regional cooperation. The strengthening of various exchanges among local governments and the expansion of trade exchanges will to some extent play a role in alleviating the relations among nations, reducing state disputes and promoting The positive role of regional development.