名词
中文翻译：土壤覆盖层
同义词：
['soil cover', 'soil blanket', 'soil mulch']
例句：
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1.The sod cover helps to retain moisture in the soil.
土壤覆盖层有助于保持土壤的水分。
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2.The farmer used a sod cover to protect his crops from the cold winter.
农民使用土壤覆盖层来保护他的作物免受寒冷的冬天。
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3. The sod cover also helps to prevent erosion and maintain soil quality.
土壤覆盖层还有助于防止侵蚀并保持土壤质量。