Keywords
adult, alert, alertness, army, asia, attention, attentive, attentiveness, china, city, city location, color image, colour image, crowded, day, dedication, discipline, exhibition, expo, expo 2010, famous place, female, females, free time, free-time, front view, guard, guards, holiday, holidays, horizontal, journey, ladies, lady, large group of people, leisure, leisure activity, leisure time, leisure-activity, leisurely, male, males, man, men, outdoors, pavilion, people, photography, protection, responsibility, safe, safety, security, security guard, security staff, servicemen, shanghai, shanghai world expo, spare time, spare-time, tourism, tourist, tourists, town, traditional culture, travel, travel destinations, traveling, trip, uniform, urban scene, vacation, vacations, visit, woman, women, world, world expo, world travel, world's fair, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u13174810