VOA慢速英语：朝鲜自称将关闭导弹测试中心和发射场
来自：VOA英语网 文章地址: http://livechatworks.com/18/09/North-Korea-Offers-to-Close-Missile-Testing-Center-Launch-Ar.html
来自：VOA英语网 文章地址: http://livechatworks.com/18/09/North-Korea-Offers-to-Close-Missile-Testing-Center-Launch-Ar.html