A contestant performs during the 18th "Chinese Bridge" Chinese Proficiency Competition for Foreign Secondary School Students in Bucharest, Romania, May 31, 2025. (Photo by Cristian Cristel/Xinhua)

A contestant performs during the 18th "Chinese Bridge" Chinese Proficiency Competition for Foreign Secondary School Students in Bucharest, Romania, May 31, 2025. (Photo by Cristian Cristel/Xinhua)

A contestant displays her calligraphy work during the 18th "Chinese Bridge" Chinese Proficiency Competition for Foreign Secondary School Students in Bucharest, Romania, May 31, 2025. (Photo by Cristian Cristel/Xinhua)