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1. The soilstone is a natural resource that can be used for building materials.
土壤石是一种天然资源，可用于建筑材料。
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2. The soilstone was formed by the erosion of water and wind over millions of years.
土壤石是由水和风在数百万年中侵蚀形成的。
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3. The soilstone has been used as a decorative element in many ancient civilizations.
土壤石在许多古代文明中被用作装饰元素。