In the course of its vigorous development of various kinds of cooperative relations with its neighboring countries,China has opened more than 200 ports along its land and sea frontiers.是什么意思_In the course of its vigorous development of various kinds of cooperative relations with its neighboring countries,China has opened more than 200 ports along its land and sea frontiers.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句