Citizens perform a square dance for fun on the south square of Dayan Pagoda in Xi’an, capital of Northwest China’s Shaanxi province, April 19, 2018. [Photo/Xinhua]

Citizens perform a square dance for fun on the south square of Dayan Pagoda in Xi’an, capital of Northwest China’s Shaanxi province, April 19, 2018. [Photo/Xinhua]

Citizens perform a square dance for fun on the south square of Dayan Pagoda in Xi’an, capital of Northwest China’s Shaanxi province, April 19, 2018. [Photo/Xinhua]