水瓶男和处女女干渴的世界英语作文
干渴的世界英语作文谢谢的英文
西边的太阳the world is not only hungry， it is also thirsty。 this may sound strange， since nearly venty percent of the earth's surface is covered with water。 but about ninety percent of this is a water。 man and most of the animals can only drink and u the remaining percent of water——fresh water。the need for water is increasing day by day。 only steps are taken to deal with this problem immediately can we avoid a vere world wide water shortage later on。 one of the first steps is to develop ways to reu it。
教育教学计划关于诚信的诗experiments have already keen carried out in this field。 the ud witer has been pumped to a water purifying plant。 there， it can be parated from waste matter and treated with chemicals so that it can be ud again， just as if it were fresh water from a spring。
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