This combo photo shows Alfonso Fraile, an ex-football player from Spain, demonstrating an oracle bone script character "Men", meaning "gate", in Madrid, Spain, April 17, 2023 (upper, photo taken by Meng Dingbo), and the oracle bone script character "Men" (L), meaning "gate", pictured at the National Museum of Chinese Writing in Anyang, central China's Henan Province on April 19, 2023 (lower, photo taken by Li An). The UN Chinese Language Day is observed on April 20 every year since 2010, celebrating the language's contribution to the world while encouraging more people to learn it. (Xinhua)