这些景观都是经过了几百万年，尤其是水的侵蚀而行成的。
They make the landscapes look very scenic. The landscape has been shapes by millions of years of erosion, especially by water.
通过地质考察发现这些峡谷是大约70亿年前由大量的水的侵蚀而形成的。
The geological claim is that the gorges were created some 70 million years ago by massive water erosion.
水从屋顶倾泻下来，加速了对房屋内部的侵蚀。
Water pours through the roof, encouraging rot to eat away the interior of the house.
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