Syrian kids take part in a Christmas celebration in the town of Sednayah in the countryside of Damascus, Syria, on Dec. 24, 2019. (Photo: Xinhua)

Syrian kids take part in a Christmas celebration in the town of Sednayah in the countryside of Damascus, Syria, on Dec. 24, 2019.

A Syrian kid takes part in a Christmas celebration in the town of Sednayah in the countryside of Damascus, Syria, on Dec. 24, 2019.

Syrian kids take part in a Christmas celebration in the town of Sednayah in the countryside of Damascus, Syria, on Dec. 24, 2019.

Syrian kids take part in a Christmas celebration in the town of Sednayah in the countryside of Damascus, Syria, on Dec. 24, 2019.

Syrian kids take part in a Christmas celebration in the town of Sednayah in the countryside of Damascus, Syria, on Dec. 24, 2019.

Decoration lights are seen in front of houses of local people on the eve of Christmas in Sydney, Australia, Dec. 24, 2019.

Decoration lights are seen in front of houses of local people on the eve of Christmas in Sydney, Australia, Dec. 24, 2019.

Decoration lights are seen in front of houses of local people on the eve of Christmas in Sydney, Australia, Dec. 24, 2019.

Decoration lights are seen in front of houses of local people on the eve of Christmas in Sydney, Australia, Dec. 24, 2019.

Newborn babies are seen dressed in Santa Claus costumes during the Christmas season at a hospital in Bangkok, Thailand, on Dec. 24, 2019.

A newborn baby is seen dressed in a Santa Claus costume during the Christmas season at a hospital in Bangkok, Thailand, on Dec. 24, 2019.