例如恢复河漫滩用来替代建设高大的堤坝防洪，种植树木和安装环保屋顶，而不是扩大下水道或建设昂贵的新水处理厂。
Examples include restoring floodplains instead of building taller levees and planting trees and installing green roofs, rather than enlarging sewers or building a costly new treatment plant.
确定孟加拉国农村地区用以降低地下水砷暴露的深管井的安装对儿童发生腹泻的影响。
To determine whether the installation of deep tube Wells to reduce exposure to groundwater arsenic in rural Bangladesh had an effect on the incidence of childhood diarrhoeal disease.
盖茨基金会正在致力于研发无水马桶，安装这种马桶不需要下水管道，而且还将有望把人类排泄物转化成肥料、燃料、甚至是可用清水。
The foundation is working to develop waterless toilets that do not rely on sewer connections - and which might turn human waste into fertilizer, fuel, or even safe drinking water.
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