Ключевые слова: architecture, builder, building, business, cement, concrete, construction, contractor, danger, development, employment, engineer, equipment, estate, exterior, group, hammer, hardhat, helmet, high, housing, industrial, industry, infrastructure, job, labor, laborer, machine, manual, men, nail, occupation, people, professional, project, protection, safety, scaffold, site, skilled, structure, tall, team, teamwork, tool, uniform, work, worker,