Ключевые слова: background, because, big, bin, city, clean, color, conservation, container, dirty, disposal, downtown, dustbin, east, ecological, ecology, empty, environment, environmental, exterior, garbage, green, industry, metal, modern, object, paper, plastic, pollution, public, recycle, recycling, region, road, rubbish, steel, street, symbol, traffic, transport, transportation, trash, urban, vehicle, waste,