题目内容
9. to help restore aquatic ecosystems harmed from over-extraction. (recycle)
回收利用的废水也可以用于帮助恢复被过分压搾而受伤害的水中的生态系统。
9.Recycled wastewater can also be used
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题目内容
9. to help restore aquatic ecosystems harmed from over-extraction. (recycle)
回收利用的废水也可以用于帮助恢复被过分压搾而受伤害的水中的生态系统。
9.Recycled wastewater can also be used