Graduate students attend Columbia University Commencement ceremony in New York, U.S.

Graduate students enter the venue before the Columbia University Commencement ceremony in New York, the United States, May 22, 2019. The Columbia University Commencement ceremony of the 265th academic year took place on Wednesday. More than 17,000 students from Columbia's 18 schools and affiliates graduated this year. (Xinhua/Wang Ying)