求翻译：湄公河，我国著名的河流之一。南亚6国。湄公河的源头在中国的青海省唐古拉山北麓，隶属青海省玉树藏族自治州杂多县扎青乡。源头全长207.4千米。是什么意思？

The Mekong River, one of the famous rivers. 6 countries in South Asia. The source of the Mekong River in Qinghai province, China Northern tanggula Shan, affiliated Zaduo County rolling green Township in yushu Tibetan Autonomous Prefecture in Qinghai province. Source of 207.4 km in length.