Greek Prime Minister Alexis Tsipras (front) listens to the Christmas carols by children from the music school of Athens, Greece, on Dec. 24, 2016.(Xinhua/Marios Lolos)
Greek Prime Minister Alexis Tsipras (front) listens to the Christmas carols by children from the music school of Athens, Greece, on Dec. 24, 2016.(Xinhua/Marios Lolos)