A Chinese volunteer teaches paper-cut at the Confucius Institute of the University of Nairobi, in Nairobi, Kenya, on Sept. 21, 2018. The Confucius Institute of University of Nairobi and the Confucius Institute of Kenyatta University held celebrations respectively on Friday to mark the upcoming Mid-Autumn Festival, which falls on Sept. 24 this year. (Xinhua/Wang Teng)?