Ключевые слова: adult, architect, architecture, asian, background, bridge, builder, building, construction, contractor, cooperation, engineer, engineering, go, group, hardhat, hat, helmet, highway, industrial, industry, job, labour, male, man, men, occupation, outdoor, outside, people, professional, project, road, safety, site, street, sunny, team, teamwork, technology, transportation, urban, walking, way, white, work, worker, yellow, young,