Ключевые слова: brick, brown, build, building, cement, concrete, construct, construction, dirt, dry, dust, equipment, floor, gravel, ground, hard, humid, hygiene, labor, lap, material, mix, moist, people, pile, placed, plaster, powder, prepare, rock, rust, sand, shovel, size, small, soil, stack, steel, stone, tool, unclean, wood, worker,