Ключевые слова: activity, architecture, area, background, basis, blurred, builder, building, business, career, cement, city, concrete, connection, construction, copy, corporate, crane, danger, dawn, development, dirt, earth, employee, engineer, engineering, equipment, foundation, frame, framework, gravel, ground, group, growth, high, house, housing, industrial, industry, infrastructure, iron, job, labor, light, metal, outdoor, pier, pillar, post, scaffold,