In the morning of June 26, 2023, Mr. Shuyan Wan successfully passed his PhD oral comprehensive exam. The title of his exam report is “Green Infrastructures for Performing Ecological, Economic, and Social Functions”. His profound knowledge and excellent presentation helped him win a good evaluation from the external examiner, Dr. Govind Gopakumar, and other examining committee members (Drs. S. Samuel Li, Farah Hafeez, and Chunjiang An).