Dancers perform at the Chinese New Year Ball-Vienna in the Hofburg Palace in Vienna, Austria, Jan. 20, 2019. The Chinese New Year Ball-Vienna, hosted by China Ballroom Dance Federation (CBDF) and other institutions, took place in the Hofburg Palace on Sunday. (Xinhua/Wang Shengsheng)

University students perform dancing at the Chinese New Year Ball-Vienna in the Hofburg Palace in Vienna, Austria, Jan. 20, 2019. The Chinese New Year Ball-Vienna, hosted by China Ballroom Dance Federation (CBDF) and other institutions, took place in the Hofburg Palace on Sunday. (Xinhua/Wang Shengsheng)

Dancers perform at the Chinese New Year Ball-Vienna in the Hofburg Palace in Vienna, Austria, Jan. 20, 2019. The Chinese New Year Ball-Vienna, hosted by China Ballroom Dance Federation (CBDF) and other institutions, took place in the Hofburg Palace on Sunday. (Xinhua/Wang Shengsheng)

Chinese Soprano Wang Xin performs at the Chinese New Year Ball-Vienna in the Hofburg Palace in Vienna, Austria, Jan. 20, 2019. The Chinese New Year Ball-Vienna, hosted by China Ballroom Dance Federation (CBDF) and other institutions, took place in the Hofburg Palace on Sunday. (Xinhua/Wang Shengsheng)

Dancers perform at the Chinese New Year Ball-Vienna in the Hofburg Palace in Vienna, Austria, Jan. 20, 2019. The Chinese New Year Ball-Vienna, hosted by China Ballroom Dance Federation (CBDF) and other institutions, took place in the Hofburg Palace on Sunday. (Xinhua/Wang Shengsheng)