阅读电视广告词：“If we don’t save water,the last drop of water will be a tear-drop.”根据提示，写一篇60-80词的短文。
提示：
1.生活离不开水。
2.可饮用水在减少。
3.水污染严重。
4.应保护水源，再利用水。
Water is very important to can’t live without water we can drink is some people don’t seem to care about waste a lot of pour dirty water into rivers and r pollution is getting more and more we must do something to stop the not only protect the water but also find ways to reuse we don’t do this,the last drop of water will be a tear-drop.
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