The previous page is sending you to https://www.apsf.org/zh-hans/article/%E6%9C%AF%E5%90%8E%E8%A7%86%E5%8A%9B%E4%B8%A7%E5%A4%B1%EF%BC%88povl%EF%BC%89%EF%BC%9A/.

 If you do not want to visit that page, you can return to the previous page.