在携带大量粗泥沙的湍急河流流经的任何地方，都能找到它们。
They are found wherever fast rivers carrying loads of coarse sediment once flowed.
在漂流过程中，使用一种起源于东南部湍急河流的轻量级策略，为我节省了时间，使我可以划得更远，玩得更开心，而无需过多考虑安全问题。
In kayaking, a lightweight strategy born on southeastern steep creeks saved me time so I could paddle longer rivers and have more fun without compromising safety.
地形上几乎大部分是山地，河流湍急，植被稀少。
The terrain is mostly mountainous, with fast flowing rivers and few forests.
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