名词
中文翻译：Unknown
同义词：
['substrate', 'soil cover', 'soil blanket']
例句：
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1. The soil cover helps to retain moisture in the soil.
土壤覆盖物有助于保持土壤中的水分。
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2. The soil cover is essential for plant growth.
土壤覆盖物对植物生长至关重要。
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3. The soil cover can prevent erosion and improve soil quality.
土壤覆盖可以防止侵蚀并改善土壤质量。