The national flag of the People's Republic of China is raised in front of China Pavilion to mark the National Pavilion Day for China at the World Expo Park in Shanghai, east China, Oct. 1, 2010, which is also the 61st anniversary of the founding of the People's Republic of China. (Xinhua/Wang Jianhua)

The national flag of the People's Republic of China is raised in front of China Pavilion to mark the National Pavilion Day for China at the World Expo Park in Shanghai, east China, Oct. 1, 2010, which is also the 61st anniversary of the founding of the People's Republic of China. (Xinhua/Wang Jianhua)

The national flag of the People's Republic of China is raised in front of China Pavilion to mark the National Pavilion Day for China at the World Expo Park in Shanghai, east China, Oct. 1, 2010, which is also the 61st anniversary of the founding of the People's Republic of China. (Xinhua/Fei Maohua)

The national flag of the People's Republic of China is raised in front of China Pavilion to mark the National Pavilion Day for China at the World Expo Park in Shanghai, east China, Oct. 1, 2010, which is also the 61st anniversary of the founding of the People's Republic of China. (Xinhua/Fei Maohua)

Source: Xinhua

Editor: Liu Fang