名词
中文翻译：自然土壤
同义词：
['earthy soil', 'organic soil']
例句：
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1.The farmers are working hard to improve the quality of their natural soil.
农民们正在努力提高他们自然土壤的质量。
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2. The soil in this region is rich in minerals and nutrients.
该地区的土壤富含矿物质和养分。
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3.The farmer used organic methods to maintain the natural soil health.
这位农民使用有机方法来维护自然土壤的健康。