廃棄物

Wastes have polluted portions of our water

Where should we dispose of the waste

This river is polluted with factory waste

Factory waste has polluted the sea

The river is polluted by waste from houses and factories

Factory waste sometimes pollutes our rivers

Together with Britain, France may ban imports of waste from Germany

The factory waste gave rise to serious environmental pollution

The second is the affinity with environment. By utilizing natural energy and reducing wastes, we have to make houses which harmonize with ecology