Ключевые слова: activity, asphalt, belt, building, clay, construction, conveyor, diesel, digging, dirt, dirty, drive, driveway, driving, engine, equipment, flat, forest, grader, gravel, ground, heat, heavy, highway, industry, job, lane, loam, machine, machinery, manual, metal, occupation, outdoors, paving, pressure, repairing, road, rolled, roller, site, smooth, soil, steam, steamroller, street, traffic, transportation, truck, vehicle, wheel, wood, work, worker, working, workplace, yellow,