International students of Jiangsu University learn to make clay whistles at a workshop in the Xijin Ferry Ancient Street block in Zhenjiang City, Jiangsu Province, February 6, 2023. Zhou Baokang, a master of the craft, showed students from Namibia, South Africa, India and other countries to make the whistles in honor of the Year of the Rabbit. The craft was listed as an intangible cultural heritage in Zhenjiang. (CFP Photo)

International students of Jiangsu University learn to make clay whistles at a workshop in the Xijin Ferry Ancient Street block in Zhenjiang City, Jiangsu Province, February 6, 2023.(CFP Photo)

International students of Jiangsu University learn to make clay whistles at a workshop in the Xijin Ferry Ancient Street block in Zhenjiang City, Jiangsu Province, February 6, 2023. (CFP Photo)