Ключевые слова: activity, bulldozer, car, countryside, dig, dirty, earth, equipment, excavator, foreground, grass, green, ground, heavy, industrial, industry, land, machine, machinery, mark, messy, mud, muddy, outdoors, outline, pattern, pit, print, road, shape, site, soil, technology, texture, tire, trace, track, tractor, trail, transport, tread, trench, truck, tyre, vehicle, wheel, work,