→百科知识｜世界水日(World Water Day)是人类在20世纪末确定的又一个节日。为满足人们日常生活、商业和农业对水资源的需求，联合国长期以来致力于解决因水资源需求上升而引起的全球性水危机。1977年召开的“联合国水事会议”，向全世界发出严…〔03-22〕

  →美文｜世界不仅是饿了，还为喝水。这似乎很奇怪你，因为近百分之七十的地球表面被水覆盖。但是，对 97 巨额 pement 海水，或咸水。人只能饮用和使用其他百分之三 - 食水从江河来，湖泊，地下，和其他来源。 的淡水量不会对我们来说是不够的。首先，我们不能使用所...…〔03-13〕

  →美文｜common injuries which may happen to their children. When a person is bitten by an animal, wash the wound with cold running water b…〔03-06〕

  →美文｜swimming, as a lot of diseases are present in the water. In most places it is not safe to eat the fish. Lakes also have the same p…〔03-05〕

  →作文｜they need out of the Mood stream, as plants and fishes take their food out of water. The blood stream carries food and the oxygen…〔02-24〕

  →作文｜...…〔02-16〕

  →美文｜This story happened in a garden long ago.There were many water vats in the garden.A group of boys were playing there.One of them s…〔02-09〕

  →范文｜The flood waters have risen so rapidly because of heavy continuous rain that everything is now submerged in water,the trees,houses…〔02-08〕