Visitors enjoy the night views during the 2019 Macao Light Festival in south China's Macao, Dec. 1, 2019. (Xinhua/Cheong Kam Ka)

Visitors enjoy the night views during the 2019 Macao Light Festival in south China's Macao, Dec. 1, 2019. (Xinhua/Cheong Kam Ka)

Performers are seen during the opening ceremony of the 2019 Macao Light Festival in south China's Macao, Dec. 1, 2019. (Xinhua/Cheong Kam Ka)

Visitors enjoy the night views during the 2019 Macao Light Festival in south China's Macao, Dec. 1, 2019. (Xinhua/Cheong Kam Ka)

Photo taken on Dec. 1, 2019 shows light decorations during the 2019 Macao Light Festival in south China's Macao. (Xinhua/Cheong Kam Ka)

Visitors take a selfie during the 2019 Macao Light Festival in south China's Macao, Dec. 1, 2019. (Xinhua/Cheong Kam Ka)