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1.The natural resources of groundwater are crucial for agriculture.
地下水的自然资源对农业至关重要。
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2.The government has been working to conserve the natural resources of groundwater.
政府一直在努力保护地下水的自然资源。
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3. The extraction of groundwater is a major source of pollution in many areas.
地下水的提取是许多地区的主要污染源。