Ключевые слова: activity, background, brush, chemical, clean, cleaner, cleaning, cleanup, clear, concept, detergent, dirt, dirty, domestic, duty, equipment, foam, glass, hand, home, house, household, housekeeping, housework, hygiene, industrial, man, occupation, person, rag, service, soap, sponge, spray, surface, transparent, wash, washer, water, wet, window, window cleaner, windows, work, worker,