Ключевые слова: bag, bin, bottle, care, charity, cheerful, clean, cleaning, collection, community, concept, container, dirty, disposal, eco, ecology, ecosystem, environment, forest, friendship, garbage, gloves, green, hand, help, junk, lifestyle, litter, man, material, nature, outdoor, park, people, picking, plastic, pollution, protect, recycle, recycling, refuse, reuse, rubbish, trash, variation, volunteer, volunteering, volunteerism, waste,