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After the forest disappeared, the soil became hard and compact, like yellow cement.
森林消失后，土壤变得很糟而且紧密，像黄水泥。
youdao
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The Yellow River delta is made up of silt and soft soil.
黄河三角洲区为粉土-软土地层结构。
youdao
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The Yellow River delta is made up of silt and soft soil.
黄河三角洲区为粉土-软土地层结构。
youdao