Keywords: Expo 2010 Hamburg House.jpg en Expo 2010 Hamburg House zh 2010年世博会 汉堡之家 http //www1 voanews com/chinese/news/special-reports/Expo-2010-Shanghai/world-expo-20100128-82930102 html VOA美国之音张楠 2010-01-28 PD-USGov-VOA Urban Best Practices Area 2010 in Hamburg |