Ключевые слова: bin, blue, bottle, care, charity, cheerful, clean, cleaning, collection, colorful, community, container, dirty, disposal, eco, ecology, ecosystem, environment, event, friendship, garbage, green, help, helping, holiday, junk, lifestyle, management, material, nature, organization, outdoor, park, picking, plastic, pollution, public, recycle, recycled, recycling, refuse, reuse, rubbish, selfless, services, social, street, sustainable, symbol, trash, travel, variation, volunteer, volunteering, waste, work, yellow,