BEIJING, April 24 (Xinhua) -- A selection of the best press photos from Xinhua.
A trainer supervises the training of a humanoid robot in an assembly line scenario at a public training center for embodied AI in Qingdao, east China's Shandong Province, April 22, 2026. With the rapid development of embodied artificial intelligence (AI), a new profession - trainers of embodied AI - has emerged, which comprise roles such as data collectors and data annotators. Jinan and Qingdao in Shandong Province have established robot data collection and training centers tailored to various scenarios. Equipped with simulated workshops replicating real-world environments such as automotive manufacturing, 3-C factories, logistics, retailing, and household care-giving, these centers allow trainers to guide robots one on one through tasks like grasping, identifying, walking, and delivering. Trainers resort to VR devices for demonstration, precise calibration, and data recording. Through thousands of repetitions and corrections, massive amounts of real machine data are generated, making embodied AI increasingly smart and capable of service in all walks of life. (Xinhua/Li Ziheng)A researcher works at the laboratory of the Institute of Chemistry, Chinese Academy of Sciences (ICCAS), in Beijing, capital of China, April 20, 2026. A joint research team has recently achieved a breakthrough in the field of optical metamaterials, creating new avenues for multi-scale optical metamaterial research and micro-nano photonics applications. The team, jointly led by the Institute of Chemistry of the Chinese Academy of Sciences and the National University of Singapore, has proposed a new paradigm for the scalable fabrication of optical metamaterials, achieving synergistic optimization of optical properties and structural design. The related findings were published in the journal Nature on Wednesday. (Xinhua/Jin Liwang)Purchasers communicate with an exhibitor during the 139th edition of the China Import and Export Fair (Canton Fair) in Guangzhou, south China's Guangdong Province, April 23, 2026. The second phase of the 139th edition of the Canton Fair kicked off here on Thursday. Spanning an area of 515,000 square meters, the exhibition features 25,000 booths and over 10,000 participating enterprises. (Xinhua/Deng Hua)People participate in a navy open-day event in Dongying, east China's Shandong Province, April 21, 2026. China on Thursday celebrated the 77th anniversary of the founding of its navy, whose growing strength has become an important force for regional and global stability. As part of these celebrations, the People's Liberation Army (PLA) Navy opened naval bases in more than 10 cities to the public, with dozens of active-duty vessels on display, according to the navy. (Photo by Wang Guangjie/Xinhua)This photo taken on April 23, 2026 shows caskets containing the remains of Chinese People's Volunteers (CPV) martyrs during a burial ceremony at the CPV martyrs' cemetery in Shenyang, northeast China's Liaoning Province. The remains of 12 Chinese People's Volunteers (CPV) soldiers who lost their lives during the War to Resist U.S. Aggression and Aid Korea (1950-1953) were laid to rest on Thursday here. The remains of the fallen soldiers were brought back to China from the Republic of Korea (ROK) on Wednesday. (Xinhua/Li Gang)A silversmith works on a silver ornament in Shuikou Township of Liping County, southwest China's Guizhou Province, April 21, 2026. The silver ornaments of the Dong ethnic group in Liping County boast exquisite craftsmanship and demonstrate the historic culture of the Dong people. In the past, silver ornaments were worn only during festivals. Today silver forging workshops thrive here. Craftsmen innovate by developing cultural and creative products, expanding sales channels through e-commerce and cultural tourism markets. The silver ornament products of Liping now enjoy strong demand both domestically and internationally. (Xinhua/Liu Xu)Cypriot President Nikos Christodoulides gives an interview before an EU summit in Ayia Napa, Cyprus, April 23, 2026. European Union (EU) leaders gathering in Cyprus on Thursday and Friday will discuss the economic and security fallout from Iran war, especially on soaring energy prices and mutual defense following a recent drone attack on the Mediterranean island. (Xinhua/Lyu You)Visitors take photos of a flash mob performance of Chinese folk music at Basilica Cistern in Istanbul, Türkiye, April 22, 2026. Nanjing University's traditional instrument orchestra, in collaboration with the Confucius Institute at Bogazici University, staged a flash mob performance of Chinese folk music here on Wednesday, attracting many visitors. (Xinhua/Liu Lei)Workers are seen at the site where two trains collided on the Gribskov Line between Hillerod and Kagerup, in Denmark, April 23, 2026. A total of 18 people were injured, including five in critical condition, after two local trains collided head-on in Denmark on Thursday morning. (Photo by Anders Kongshaug/Xinhua)Xie Linshan (L) of China competes during the water polo women's round-robin final match between China and Thailand at the 6th Asian Beach Games in Sanya, south China's Hainan Province, April 23, 2026. (Xinhua/Zhu Weixi)■
