2. If the browsing record is seriously lost, even the entrance can't be found at all, even if you visit it, you can't view it. You can try to restore browsing records through Zhihu customer service, click on the work order, and then follow the customer service suggestions. In most cases, you can recover the records normally.
3. Wait patiently for the reply from Zhihu Customer Service. The previously lost browsing records can be retrieved through minimalist operation.