Beijing wants to avert the chaos and refugee crisis that could accompany an implosion of the regime in Pyongyang and it does not like the idea of a unification of the Korean peninsula that would bring US troops up to its border. 北京方面希望避免可能伴随着朝鲜政权垮台出现的混乱和难民危机,中国也不希望朝鲜半岛统一,因为这会让美国军队逼近中国边境。