(250102) -- BEIJING, Jan. 2, 2025 (Xinhua) -- This photo taken on Jan. 4, 2024 shows a view of the frozen Neva River in St. Petersburg, Russia. Temperature in St. Petersburg, Russia's second largest city, dropped to minus 25.3 degrees Celsius on Jan. 4, 2024, a frost that the city has not seen in over 70 years. (Photo by Irina Motina/Xinhua)