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. 2025/08/16 11:37 yǒu bèi wú huàn: 有备无患 - To be prepared is to have no worries; Better safe than sorry – created xiaoer +11.1 KB (current)Show differences between selected revisions