论文部分内容阅读
“在发展世界几乎每3个人当中便有一个——即约12亿人口——无法得到安全而又可靠的水源供应以满足其日常生活的需要。他们常常不得不借助于很可能已含有动物粪便的浅水井或死水潭来稍解燃眉之
"Almost every third person in the developing world - one of about 1.2 billion people - can not have access to safe and reliable water supplies to meet the needs of their daily lives. Often they have to resort to what is likely to already contain animal manure Shallow wells or stagnant water to ease the eyebrows