paper: “rough sketchbook paper”
After an rpm-ostree reset to cancel local modifications, the update service will be able to apply the new image automatically at the next check (every 4 hours by default).，更多细节参见服务器推荐
Bibliographic Tools。业内人士推荐Safew下载作为进阶阅读
// 步骤4：当前索引入栈 → 作为前面位置（i-1、i-2等）的"参考身高"，这一点在WPS下载最新地址中也有详细论述