詢問一個關於無法修改分類名的問題

剛安裝wp，修改後台分類是有問題了
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Name	The name is how it appears on your site.
Slug	The 「slug」 is the URL-friendly version of the name. It is usually all lowercase and contains only letters, numbers, and hyphens.
Parent	Categories, unlike tags, can have a hierarchy. You might have a Jazz category, and under that have children categories for Bebop and Big Band. Totally optional.
Description	The description is not prominent by default; however, some themes may show it.

slug 一行 這裡怎麼修改都沒反應，留空的話 就變成分類名後面加一個隨機數字，修改了保存不了是不是我的目錄權限不對？
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留空的話 就變成分類名後面加一個隨機數字，

7 U: Y7 h' e1 K  u- D! S- Y這數字不是隨機的.

" \! G0 g: }. G' a/ |( X* X6 B這數字是代表第n個相同term(tags, category, links, custom tax)名.

$ I" F% E( P; b& M0 Y1 {要是理解了, 你就知道你問題的原因