Vang Vieng's natural beauty is breathtaking: It sits on the Nam Song River amid jagged karst mountains.
万荣的自然风光以险峻著称：它就坐落在南淞喀斯特山区。
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Because human activities and hydroenergy development along the Hongshui River, the karst immersion waterlogging hazards have become increasingly critical, which we should pay serious attention to.