A couple walks through Grant Park in downtown Chicago, the United States, Jan. 14, 2024(Photo: Xinhua)

People enjoy sledding in downtown Chicago, the United States, Jan. 14, 2024.(Photo: Xinhua)

This photo taken on Jan. 14, 2024 shows the Lake Michigan with steam fog in cold weather in downtown Chicago, the United States(Photo: Xinhua)

This photo taken on Jan. 14, 2024 shows the Lake Michigan with steam fog in cold weather in downtown Chicago, the United States(Photo: Xinhua)