Version/revision saves a copy of a post every time you edit it, allows you to view (not edit) each of those copies (revisions), Shows forward (in time) diffs between any two revisions.

• 版本/修订本在你每次编辑文章的时候，都会保存文章，这样你能够浏览（不是编辑）这些保存的文章内容（修订本）。显示任何两个文章修订本之间的区别。