保護水資源：

　　As we can see, the world population is growing rapidly day by day. So enough fresh water is needed to feed such a big population. What's more, with the development of industry, factories and vehicles produce poisonous gases or wastes, which consequently results in the pollution of water. Though fresh, a good amount of it can no longer be used. Only quite limited fresh water resource is available to human beings. So it's high time for us human beings to take quick action to protect water resource. Stop pollution and save water, otherwise, we cannot survive on the earth.

　　With fresh water, the world will be prosperous.

　　翻譯如下：

　　正如大家看到世界人口增長迅速日。 給這類大的人口需要有足夠的淡水。 怎么還有與工業(yè)事務(wù)局研究工廠和車輛產(chǎn)生有毒氣體或，因此導(dǎo)致污染的水的廢物。 雖然新鮮的可以不再使用好的量。 只有很有限的新鮮水資源可供人類。 因此，它是我們?nèi)祟惒扇】焖傩袆樱Ｗo水資源的時候了。 停止污染和保存水，否則，我們不能生存在地球上。 新鮮的水世界將會繁榮。
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