Ключевые слова: activity, architecture, background, build, business, cement, clay, concrete, construct, construction, crushed, day, development, dig, dirt, earth, equipment, front, gravel, gray, ground, heap, horizontal, industrial, industry, job, man, material, mound, nature, outdoor, outdoors, pile, road, rock, rough, sand, scoop, shovel, shoveling, site, soil, spade, steel, stone, tool, white, wood, work, worker,