I don't know how others who transferred from BO to WP dealt with the pages that had already been indexed by search engines. At first, I thought the supposedly omnipotent WP would allow me to directly modify the links into the style of BO. However, I was disappointed to find out that the permalink only modifies a few fixed parameters, and some even require FWQ support. I once considered giving up on modifying and abandoning the inclusion in Baidu and Google. But when I started again.