Ключевые слова: activity, blue, clay, clearing, cloud, construction, day, digging, dirt, distribution, dredging, dump, dust, earth, engine, engineering, environment, excavate, excavator, expansion, filling, gear, ground, growth, heap, heavy, industry, ladle, land, landscape, large, loading, machinery, machines, mining, natural, nature, outdoors, power, quarry, scoop, shovel, sky, soil, strength, surface, tipper, transportation, truck, working,