Ключевые слова: architecture, balance, beam, blue, blueprint, bricks, building, cement, composite, construction, contractor, crawling, crew, danger, electric, elevation, engineer, engineering, equipment, event, facade, foundation, hammer, heights, helmet, hoist, jackhammer, job, leisure, material, metal, precaution, profession, project, rebar, risk, rooftop, rubble, safety, scaffold, skilled, standing, steel, structure, supervisor, tools, trowel, work, worker, workwear,