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The bed of a river is partly worn away by corrosive action.
河床部分地就是被这种侵蚀作用冲蚀的。
youdao
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The bed of a river is partly worn away by corrosive action.
那条河侵蚀河岸直到形成一条新的河道。
youdao
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The bed of a river is partly worn away by corrosive action.
那条河侵蚀河岸直到形成一条新的河道。
youdao