rivers是什么意思？

"This means that rivers will rise more slowly, but then stay high for much longer," the environmental agency said.

We can break the mountains apart; we can drain the rivers and flood the valleys.

We can pollute the air with acids, the rivers with sewage(污水), the seas with oil

But these waterways seem minute in comparison to the world's two lengthiest rivers—the Nile and the Amazon.

Citizens of wealthy nations demand national parks, clean rivers, clean air and poison-free food.

In some cases, water is so scarce that farmers break open sewage pipes transporting waste to local rivers.

Most of these operations draw irrigation water from local rivers or lakes.

Unlike developed cities, however, these areas lack advanced water-treatment facilities, and rivers effectively become sewers.