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A visitor takes photos during China Light Festival at Cologne Zoo in Cologne, Germany, on Jan. 3, 2019. The festival is held here presenting more than 50 lights from Dec. 8, 2018 to Jan. 20, 2019. (Xinhua/Lu Yang)
A visitor takes photos during China Light Festival at Cologne Zoo in Cologne, Germany, on Jan. 3, 2019. The festival is held here presenting more than 50 lights from Dec. 8, 2018 to Jan. 20, 2019. (Xinhua/Lu Yang)