Revelers of Imperio Serrano samba school perform Chinese dragon dance as they participate in the parade of the Carnival at the Sambadrome in Rio de Janeiro, Brazil, on Feb. 11, 2018. The special group of Rio Carnival 2018 started with the show "the samba empire on China's silk road" by the traditional samba school, the Imperio Serrano, on Sunday night. (Xinhua/Li Ming)