Dear Sir or Madam，

I’m writing to you to state my view on the water pollution problem。 It is generally accepted that water pollution is a serious public hazard today。 Rivers all over the world are becoming polluted with garbage and dangerous chemicals。 Ships contribute to the problem because they rely on rivers for disposing of wastes。 Oil and other chemicals can kill fish and make water unsafe for drinking。 Because they rely on rivers for disposing of wastes。 Oil and other chemicals can kill fish and make water unsafe for drinking。 In a word， polluted water is a big problem to everyone。

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As you know， people depend on water to live on。 They should be involved in finding a solution to this problem。 I think， certain counter measures need to be taken as soon as possible。 To begin with， the governments of all countries are supposed to formulate rules and regulations to deal with the pollution problem。 In addition， factories in towns and cities must be prohibited from draining waste liquids into rivers before they are totally treated and purified。 I feel if they violate relevant rules or laws， they should be fined heavily。 Certainly， there are some other cures which are worth adopting。

As far as future prospect is concerned， I am sure that good results will be achieved in this respect。 Rivers which used to be contaminated by industrial wastes will be cleaned and fish which could not live there a few years ago will be again。 To conclude， it seems obvious that tomorrow will be better and brighter only if everyone does his part and tries hard to seek solutions for its control。