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Artists perform "On Roller Skates" during the 42nd Monte-Carlo International Circus Festival in Fontvieille, Monaco on Jan. 19, 2018. The 11-day circus festival opened on Thursday. (Xinhua/Chen Yichen)
Artists perform "On Roller Skates" during the 42nd Monte-Carlo International Circus Festival in Fontvieille, Monaco on Jan. 19, 2018. The 11-day circus festival opened on Thursday. (Xinhua/Chen Yichen)