A contestant showcases his painting work during a Chinese language competition marking the 17th United Nations Chinese Language Day in Nis, Serbia, April 16, 2026. (Photo by Wang Wei/Xinhua)

A contestant performs during a Chinese language competition marking the 17th United Nations Chinese Language Day in Nis, Serbia, April 16, 2026. (Photo by Wang Wei/Xinhua)

A contestant gives tea art performance during a Chinese language competition marking the 17th United Nations Chinese Language Day in Nis, Serbia, April 16, 2026. (Photo by Wang Wei/Xinhua)

A contestant delivers a speech in Chinese during a Chinese language competition marking the 17th United Nations Chinese Language Day in Nis, Serbia, April 16, 2026. (Photo by Wang Wei/Xinhua)