BEIJING, Oct. 31, 2019 (Xinhua) -- The world in the past 24hrs. A selection of the best daily press photos from Xinhua.

A snow leopard gazes at a lake at the source of the Yellow River in northwest China's Qinghai, Oct. 5, 2019. New progress has been made in the investigation of snow leopards in the Yellow River source, according to the World Wildlife Fund for Nature (WWF). Up to now, snow leopards in the Yellow River source have been recorded 194 times of triggering the infrared camera. (World Wide Fund for Nature/Handout via Xinhua)

Staff members work at a production line of SAIC Volkswagen in east China's Shanghai, Oct. 29, 2019. (Xinhua/Ding Ting)

Aerial photo taken on Oct. 30, 2019 shows the Xiangyu Castle in Qinshui County, north China's Shanxi Province. The Xiangyu Castle that was built in the Ming Dynasty (1368-1644), has attracted many tourists with its beautiful moat, unique walls and courtyards. (Xinhua/Cao Yang)

Aerial photo taken on Oct. 30, 2019 show the scenery of Qishu Lake in Yixian County of Huangshan, east China's Anhui Province. (Xinhua/Zhang Duan)

Raissa experiences lion dance at Sias University in Zhengzhou, central China's Henan Province, Oct. 28, 2019. Seventeen-year-old Raissa was born and bred in the Comoros, an island country in the Indian Ocean. In 2016, Raissa's grandmother was cured by doctors of the Chinese medical team in Africa. Raissa then developed a strong emotional connection with China, which prompted her to learn Chinese at the local Confucius Institute with unremitting endeavors. On the preliminary contest of the 12th Chinese Bridge proficiency competition for secondary school students in the Comoros this year, Raissa won the championship. Thus she got the chance to visit China for the first time as she came to Zhengzhou to attend the second-round competition. Sheerly fascinated by Chinese culture, Raissa has taken part in various activities on traditional Chinese medicine and folk arts during her stay in Zhengzhou. (Xinhua/Li Jianan)

Rafael Mariano Grossi is seen during the Board meeting open to all IAEA member states in Vienna, Austria, Oct 30, 2019. Rafael Mariano Grossi of Argentina received the majority support required in an International Atomic Energy Agency (IAEA) Board of Governors ballot on Tuesday to be appointed the agency's new director general. (Xinhua/Guo Chen)

UN Special Envoy for Syria Geir Pedersen (C), Syrian Constitutional Committee's Co-Chairs, Ahmad Kuzbari (L) from the Government, and Hadi Albahra (R) from the Opposition, attend the opening ceremony of the committee in Geneva, Switzerland, on Oct. 30, 2019. The Syrian Constitutional Committee made up of opposition, civil society and government delegations -- each with 50 members -- began its work here as scheduled on Wednesday. (Denis Balibouse/Pool via Xinhua)

Chilean President Sebastian Pinera (C) arrives to make an announcement at the La Moneda Presidential Palace in Santiago, Chile, on Oct. 30, 2019. Pinera announced Wednesday that Chile will suspend hosting the APEC summit and the COP25 climate summit, due to ongoing social crisis in the South American country. (Sebastian Beltran Gaete/Agencia Uno via Xinhua)

A group of monks pass by That Luang Stupa in Vientiane, Laos, Oct. 26, 2019. (Photo by Kaikeo Saiyasane/Xinhua)

A robot is displayed during the World of Robots 2.0 exhibition in Bishkek, Kyrgyzstan, Oct. 29, 2019. (Photo by Roman/Xinhua)

Visitors view the illuminated Jack O'Lanterns at the Great Jack O'Lantern Blaze held at Croton-on-Hudson of New York State, the United States, Oct. 29, 2019. More than 7,000 illuminated Jack O'Lanterns, all designed and hand-carved by artisans, are on display during the show, which is expected to attract more than 180,000 visitors this year. (Xinhua/Wang Ying)