求翻译：湄公河,干流全长4880公里，是亚洲最重要的跨国水系，世界第六大河流；主源为扎曲，发源于中国青海省玉树藏族自治州杂多县。流经中国、老挝、缅甸、泰国、柬埔寨和越南，于越南胡志明市流入南海。流域除中国和缅甸外，均为湄公河委员会成员国。湄公河上游在中国境内，称为澜沧江，下游三角洲在越南境内，因由越南流出南海有9个出海口，故越南称之为九龙江，总程度长2139公里。是什么意思？

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mekong river, stream 4880 km length, one of Asia's most important transnational river systems, the world's No. 6 big rivers; the main source of Mazar-i-tunes, originated in China's Qinghai yushuzangzuzizhizhou miscellaneous many counties. Passing through China, Laos, Myanmar, Thailand, Cambodia and

Mekong River, the main current span 4880 kilometers, are the Asian most important transnational river system, the world sixth big rivers; The main source for grips the tune, originates in Chinese Qinghai Province eucalyptus Tibetan national minority autonomous prefecture Zadoi County.Flows after Chi

Mekong and mainstream 4,880 km, Asia's important rivers in transnational, world sixth largest river primary source to tie songs originated in China Zaduo County of yushu in Qinghai Tibetan Autonomous Prefecture. Flowing through China, Lao, Myanmar Thailand, Cambodia or Viet Nam, Yu Viet Nam city int

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