Listen to this principal's stunning voice and the reasons why he sang to his graduates.
원문출처 : https://www.cnn.com/videos/us/2021/06/10/principal-sings-to-graduating-class-orig-jk.cnn
원문출처 : https://www.cnn.com/videos/us/2021/06/10/principal-sings-to-graduating-class-orig-jk.cnn