Ключевые слова: activity, big, builder, building, city, concrete, construction, constructor, contractor, demolition, destroy, destroyer, development, digger, dirt, drill, drilling, earth, engineer, engineering, equipment, excavation, foreman, foundation, ground, hammer, heavy, hole, hydraulic, industrial, industry, machine, machinery, man, modern, pile, pillar, pole, power, protective, rigger, safety, site, soil, technology, tool, vehicle, work, worker, workplace,