Ключевые слова: action, active, activity, adult, blur, blurred, bridge, building, business, businessman, city, commuters, crowd, crowded, floor, footpath, group, hour, landmark, lawn, life, lifestyle, men, modern, motion, move, office, outdoor, outside, pedestrian, people, public, rush, shanghai, skyscraper, speed, stair, tourist, transportation, travel, traveler, traveling, urban, walk, walker, walkway, women,