动词短语
中文翻译：自我覆盖
同义词：
['self-sown', 'self-seeding例句：1. The farmer used his own mulch to improve the soil quality.（农民使用自己的覆盖物来改善土壤质量。）']
例句：
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1. The farmer used his own mulch to improve the soil quality.
农民使用自己的覆盖物来改善土壤质量。
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2.The new planting method is designed to reduce the need for external mulch.
新种植方法旨在减少对外部覆盖物的需要。
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3. Self-mulching is an effective way to control weeds and maintain soil health.
自我覆盖是一种有效的控制杂草和保持土壤健康的方法。