水可以循环利用。
有一天，妈妈叫我帮助她洗衣服，就在我要去倒掉水的时候，妈妈阻止了我，她告诉我说大部分水可以循环利用。
Someday, my mother asked me to help her wash the clothes, as I was about to pour away the water, my mother stopped me and she told me that most water can be recycled.
没有被植物吸收的营养物质和水可以被循环利用，而不是流失到土壤中。
Any nutrients and water that are not taken up by the roots can be recycled, rather than being lost into the soil.
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