Children chat at the graduation day from kindergarten in Lhasa, capital of Tibet Autonomous Region, July 12, 2019. [Photo/Xinhua]

Children attend a ceremony at the graduation day from kindergarten in Lhasa, capital of Tibet Autonomous Region, July 12, 2019. [Photo/Xinhua]

A child presents a hada scarf at the graduation day from kindergarten in Lhasa, capital of Tibet Autonomous Region, July 12, 2019. [Photo/Xinhua]