全长约1,287公里(800英里)的一条河流，发源于兴都库什山脉，向西南流经阿富汗流入伊朗边界处的一个沼泽湖泊。
A river, about 1,287 km (800 mi) long, rising in the Hindu Kush and flowing southwest across Afghanistan to a marshy lake on the Iranian border.
在某些情况下，地下水位到达地球表面，在那里以河流、湖泊和沼泽的形式表现出来。
In some cases, the water table reaches Earth's surface, where it is expressed as rivers, lakes and marshes.
湖泊、河流、沼泽和海岸等湿地可以维持生物多样性、防洪以及消除污染物。
Wetlands—lakes, rivers, marshes and coasts, can maintain biodiversity, control floods and remove pollutants.
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