Ключевые слова: action, auto, blowing, break, broom, brush, clean, cleaning, contemporary, contractor, drive, driveway, driving, dust, ecological, employee, epidemic, event, glove, grey, help, horizontal, hygiene, inventory, job, joint, labor, landscaping, leadership, machine, machinery, maintenance, man, occupation, pavement, pollution, professional, road, sand, service, street, sweeping, swept, tile, tiles, tool, traffic, uniform, volunteer, work,