People take photos of the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

Acrobats perform at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

Actors perform at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

An acrobat performs at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

Acrobats perform at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

Actresses perform at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

An acrobat performs at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

An acrobat performs at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Xu Zhaorui)

Actors perform at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

An acrobat performs at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

Actors perform at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)

Acrobats perform at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Xu Zhaorui)

An acrobat performs at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Xu Zhaorui)

Acrobats perform at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Xu Zhaorui)

An acrobat performs at the opening ceremony of the 6th China International Circus Festival in Zhuhai, south China's Guangdong Province, Nov. 16, 2019. The circus festival was held in Zhuhai from Nov. 16 to 23. (Xinhua/Lu Ye)