Acrobats from China's Shandong Acrobatic Troupe perform at the 44th Monte-Carlo International Circus Festival in Monaco, Jan. 16, 2020. The circus festival kicked off here on Thursday. (Xinhua/Gao Jing)

Acrobats from China's Shandong Acrobatic Troupe perform at the 44th Monte-Carlo International Circus Festival in Monaco, Jan. 16, 2020. The circus festival kicked off here on Thursday. (Xinhua/Gao Jing)

Acrobats from China's Shandong Acrobatic Troupe perform at the 44th Monte-Carlo International Circus Festival in Monaco, Jan. 16, 2020. The circus festival kicked off here on Thursday. (Xinhua/Gao Jing)

Acrobats from China's Shandong Acrobatic Troupe perform at the 44th Monte-Carlo International Circus Festival in Monaco, Jan. 16, 2020. The circus festival kicked off here on Thursday. (Xinhua/Gao Jing)

Acrobats from China's Shandong Acrobatic Troupe perform at the 44th Monte-Carlo International Circus Festival in Monaco, Jan. 16, 2020. The circus festival kicked off here on Thursday. (Xinhua/Gao Jing)