Penson 基本例句 n.彭森¹⁰⁰ However, the age stipulation is new and surprising, says David Penson, MD, associate professor of urology and preventive medicine at the Keck School of Medicine, University of Southern California. 然而，对年龄的规定是新出现的，这是令人吃惊的， David Penson博士说。他是南加利福尼亚大学 Keck医学院泌尿外科及预防医学的副教授。 dxy