A flag-raising ceremony to celebrate the 72nd anniversary of the founding of the People's Republic of China is held at the Tian'anmen Square in Beijing, capital of China, Oct. 1, 2021. (Xinhua/Chen Zhonghao)

A flag-raising ceremony to celebrate the 72nd anniversary of the founding of the People's Republic of China is held at the Tian'anmen Square in Beijing, capital of China, Oct. 1, 2021. (Xinhua/Chen Zhonghao)

A flag-raising ceremony to celebrate the 72nd anniversary of the founding of the People's Republic of China is held at the Tian'anmen Square in Beijing, capital of China, Oct. 1, 2021. (Xinhua/Chen Zhonghao)

A flag-raising ceremony to celebrate the 72nd anniversary of the founding of the People's Republic of China is held at the Tian'anmen Square in Beijing, capital of China, Oct. 1, 2021. (Xinhua/Chen Zhonghao)

A flag-raising ceremony to celebrate the 72nd anniversary of the founding of the People's Republic of China is held at the Tian'anmen Square in Beijing, capital of China, Oct. 1, 2021. (Xinhua/Chen Zhonghao)