Ключевые слова: agent, air, airline, airplane, airport, asian, aviation, background, board, building, business, china, chinese, country, crowd, customs, digital, education, emigration, flight, gate, hall, hand, holding, holiday, id, immigration, information, interior, landmark, modern, passport, people, pile, screen, sign, small, summer, taiwan, terminal, tourism, tourist, transportation, travel, trip, vacation, visa, work, world,