上海世博会是历史上首届以“城市”为主题的综合类世博会,通过“城市,让生活更美好”的主题宣言来探讨什么样的城市让生活更美好,什么样的生活观念和实践让城市更美好,什么样的城市 Shanghai World Expo is the first comprehensive Expo with the theme of “City” in history, and the theme declaration of “Better City, Better Life” to explore what kind of city makes life better and what kind of life concept and Practice to make the city a better place, what kind of city