Ключевые слова: broom, brush, car, caretaker, city, clean, cleaner, cleaning, collector, dirt, dirty, dust, employee, equipment, garbage, green, hose, humid, janitor, jet, machine, machinery, man, municipal, orange, outdoorethplusmn, pavement, road, road sweeper, service, sidewalk, special, street, street cleaner, street sweeper, sweep, sweeper, sweeping, transportation, truck, urban, vehicle, wash, water, wet, wheel, wiper, work, worker, yardkeeper, yardman,