山体细粒沉淀物在冰川与河流活动的作用下被冲刷下来，接着被风吹走或水流带走。

The actions of glaciers and rivers scrape away fine sediment, which is carried away by water and wind.

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因此，下雨的时候，土壤从山上被冲刷下来，流进了河里。

So when it rains, the soil is washed down the hills and into the rivers.

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因此，下雨的时候，土壤从山上被冲刷下来，流到河里去了。

So when if rains, the soil is washed down the hills and into the rivers.

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因此，下雨的时辰，泥土碛山上被冲刷下来，流到河里去了。

So when if rains, the soil is washed down the hills and into the rivers.

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因此，下雨的时候，土壤从山上被冲刷下来，流到河里去了。

So when if rains, the soil is washed downbound the hills and into the creeks.

youdao

因此，下雨的时候，土壤从山上被冲刷下来，流到河里去了。

So when if rains, the soil is washed downbound the hills and into the creeks.

youdao