Chinese Vice Premier Liu Yandong (6th L Front) poses for a photo with some directors and teachers of German Confucius Institutes at the Free University of Berlin, Germany, Nov. 25, 2016. Chinese Vice Premier Liu Yandong on Friday called for better use of Confucius Institutes to promote exchanges and mutual learning among different civilizations and enhance people's understanding about China when visiting the Confucius Institute at the Free University of Berlin. (Xinhua/Ye Pingfan)