Show pageOld revisionsBacklinksBack to top Old Revisions These are the older revisons of the current document. To revert to an old revision, select it from below, click Edit this page and save it. 2025/08/22 15:09 wēngùzhīxīn: 温故知新 - Learning from the Past, Gaining New Insights by Reviewing Old Knowledge – created xiaoer +12.4 KB (current)Show differences between selected revisions