I'm writing to you to state my view on the water pollution problem.

我给您写信是想陈述我对水的污染问题的看法。

youdao

This has proved to be a major yet intractable part of the water pollution problem.

这已经证明是个主要的而又是个难控制的水污染问题。

youdao

In recent years, China's water pollution problem has become a cross-regional, inter-basin complex problem.

近年来，我国水污染问题已经成为了跨区域，跨流域的复杂问题。

youdao

Most of the money was spent of dredging equipment. But Tuman and others who live on the water say these machines rarely work and have not helped with the pollution problem.

VOA: standard.2009.12.16

Floating pigs aren't Shanghai's only water-pollution problem this year, despite years of effort by local authorities to improve local waterways.

WSJ: Dead Pigs Worry Shanghai

"We thought why don't we start a company that addresses this possibility of using capitalism as an aggressive way to solve the glaring problem of water pollution, " he said.

CNN: Eco-friendly bottle for ethical water

We had a major problem with water pollution.

BBC: Why are there hawker centres in Singapore?