Since 1995,the Chinese Ministry of National Defense has signed frontier cooperation agreements with the General Administration of Frontier Defense of the Russian Federation and the Administration of Frontier Guards of Mongolia.是什么意思_Since 1995,the Chinese Ministry of National Defense has signed frontier cooperation agreements with the General Administration of Frontier Defense of the Russian Federation and the Administration of Frontier Guards of Mongolia.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句