Ключевые слова: activity, architecture, background, beatiful, built, business, china, chinese, city, color, concrete, construction, crane, dawn, derrick, development, dusk, engineering, equipment, exterior, group, hardhat, helmet, high, housing, industry, laborers, light, modern, occupation, orange, outdoor, scaffolding, silhouette, site, sky, skyscraper, steel, structure, sunlight, sunset, technology, urban, working, yellow,