It is generally believed that there is a good supply of fresh water. But to our disappointment, the fact is just the opposite.
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. Whats 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 its 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.
人们普遍认为，淡水供应是很充足的。但令我们失望的是，事实上恰恰相反。
我们可以看到，世界人口正在快速与日俱增。因此需要足够的淡水养活这么大的人口。更重要的是，随着工业的发展，工厂和汽车产生有毒气体或垃圾，从而导致水的污染。虽然是淡水，但大量的水资源不可以再被使用。只有非常有限的淡水资源可以提供给人类。所以是时候该我们人类迅速采取措施保护水资源了。停止污染并节约用水，否则，我们无法在地球上生存。
有了淡水，世界将会繁荣兴旺。