Ключевые слова: africa, african, american, architecture, bridge, build, builder, building, bypass, cement, civil, column, concrete, construction, design, development, engineer, engineering, equipment, express, foreman, hardhat, helmet, high, hight, hight way, highway, industrial, industry, man, manager, motorway, outdoor, overpass, professional, road, roads, route, safety, site, steel, street, structure, traffic, transport, transportation, way, work, worker,