Rainfall is not completely absent in desert areas, but it is highly variable.

沙漠地区并非完全没有降雨，但它的变化很大。

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But the relationship between rainfall and landslide is very complex.

但是，降雨与滑坡发生的关系不仅密切，而且非常复杂。

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But the relationship between rainfall and landslide is very complex.

但是，降雨与滑坡发生的关系不仅密切，而且非常复杂。

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