让它们被净化水冲走吧，让它们消失得无影无踪。

Let them be washed away by the cleansing waters, and let them go.

youdao

几乎半数的世界人口都依靠生物质燃料——木材，牛马粪便和农业废料等——来完成如煮饭，干燥农作物，净化水等日常生活活动。

Approximately half of the world's population relies upon biomass fuels - such as wood, dung and agricultural wastes - for everyday tasks such as cooking, drying crops and purifying water.

youdao

它不能净化水，但可以过滤掉可见沉淀物和可怕的小虫子。

Socks won't purify water, but filtering it through fabric can help remove the more visible sediment and creepy- crawlers.

youdao