Ключевые слова: asphalt, broom, brush, business, car, city, clean, cleaner, cleanup, day, dirt, dirty, dust, equipment, floor, garbage, highway, industrial, industry, land, machine, machinery, maintenance, motion, nobody, outdoor, outdoors, road, rubbish, scavenger, scrub, sidewalk, street, sweep, sweeper, sweeping, transport, truck, urban, vehicle, view, wheel, work,