1. Water from kitchens and bathrooms would be carefully cleaned and recycled to the city.
    厨房和浴室排出的水将被仔细地进行净化，重新供给城市使用，

2. With fewer trees, the paper industry is producing more paper from recycled materials but, unfortunately, damages the planet.
    由于树木减少，造纸厂更多地依靠再生材料造纸，但不幸的是，这同时也对我们这个星球带来了损害，

3. Air and water would be constantly recycled.
    空气和水不断地再循环。

4. And the production of recycled items, like the production of any other form of manufactured goods, requires energy and other resources while creating pollution.
    而且生产回收利用的产品，就像生产其他各类产品一样，需要能源和其他资源，同时还造成了污染。

5. Steel, iron, glass, cloth and paper can all be recycled.
    钢,铁,玻璃, 布和纸张都可以回收再用.废水也可以回收再用.