一年前的某一天,我在网上偶然看到一则消息,“美国科学家新发现马齿苋可防治心脏病”。马齿苋是一种常见的野菜,在校园里、庭院里甚至马路边经常可以看到。上海浦东新区的许多大型绿地 One day a year ago, I happened to see a message on the Internet. “American scientists have discovered that purslane can prevent heart disease.” Purslane is a common wild vegetable that is often seen on campus, in the courtyard, and even on the side of the road. Many large green areas in Pudong New Area, Shanghai