A Chinese doctor demonstrates Chinese massage therapy at an open house hosted by the Confucius Classroom in Brazzaville, capital of the Republic of the Congo, April 15, 2023. The Confucius Classroom in Brazzaville, held an open house on Saturday ahead of the UN Chinese Language Day on April 20, to celebrate the Chinese language and Chinese culture. (Photo by Guy-Gervais Kitina/Xinhua)