People skate on the GUM ice rink at Red Square in Moscow, Russia, on Dec. 2, 2020. The rink at Red Square will be open to public until March 1, 2020.(Photo: Xinhua)

Children skate on the GUM ice rink at Red Square in Moscow, Russia, on Dec. 2, 2020. The rink at Red Square will be open to public until March 1, 2020.(Photo: Xinhua)

A boy skates on the GUM ice rink at Red Square in Moscow, Russia, on Dec. 2, 2020. The rink at Red Square will be open to public until March 1, 2020.(Photo: Xinhua)

People skate on the GUM ice rink at Red Square in Moscow, Russia, on Dec. 2, 2020. The rink at Red Square will be open to public until March 1, 2020.(Photo: Xinhua)