Ключевые слова: activity, architecture, armature, army, barrel, build, buildings, bunker, businesses, cement, cementing, concrete, concreting, construction, contracting, contractor, effort, employment, equipment, filing, fill, foundation, framework, gravel, ground, handling, house, infrastructure, iron, labor, level, liquid, machinery, mason, material, metal, mixer, mixing, occupation, pour, process, project, sand, shovel, third, tools, trolley, wheelbarrow, working, world,