净化空气和水的英语单词 Clean air and water
净化水的必要性英语作文 Why do we need water purifiers？Water quality good areas even tap water safe，is not healthy water.If you say that safe water is water that people need for food and clothing，then the water is a healthy demand for water well-off people.Europe，America，Japan and South Korea and other developed countries，through the use of water purification equipment，realized with water quality，human health is closely related to drinking water，kitchen water，bathing water and toilet flushing，laundry，mopping the floor and so on domestic water separated，achieve the quality of water supply.Because they deeply understand that health is the basis of life and health of water.
净化污水的英文怎么说 I'm sorry for not having discribed it clearly.
