In notes and books, ff after a page number means 'and the pages that follow'. If a writer says see p. 12ff, they mean: start at page 12 and keep going through the next pages as well — not page 12 alone, and not a closed range like 12–15. A single f (p. 12f) often means page 12 and the next page; ff means more than one page after.

In notes and books在註釋和書裡, ff after a page number頁碼後面的 ff means 'and the pages that follow'意思是「以及接下來的頁數」。If a writer says see p. 12ff如果作者寫 see p. 12ff, they mean意思是: start at page 12 and keep going through the next pages as well從第12頁開始一路往後看 — not page 12 alone不是只有第12頁, and not a closed range like 12–15也不是像12到15頁那樣封閉的範圍。A single f (p. 12f)單一個 f（如 p. 12f） often means page 12 and the next page通常指第12頁和下一頁; ff ff 則 means more than one page after指後面不只一頁

You see this in footnotes, reading lists, and older academic English. It is not spoken as a word; people read it as 'and following'. It feels a little old-fashioned now — many writers prefer pp. 12–18 or page 12 and after — but students who read serious books still meet it.

You你 see this in footnotes, reading lists, and older academic English會在註腳、書單和較舊的學術英文裡看到這個用法。It它 is not spoken as a word不會唸出來當一個字; people有人 read it as 'and following'會把它唸成「and following」。It它 feels a little old-fashioned now現在感覺有點老派 — many writers prefer pp. 12–18 or page 12 and after許多作者更喜歡寫 pp. 12–18 或 page 12 and after — but students who read serious books still meet it不過讀正經書的學生還是會遇到它

Same letters, other jobs: musicians write ff for very loud, and ff can just be two f's typed together. This entry is the page one.

Same letters, other jobs同樣的字母，不同的用法: musicians音樂家 write ff for very loud會用 ff 表示「很強（fortissimo）」, and ff而 ff 也 can just be two f's typed together可能只是兩個 f 打在一起。This entry這個詞條 is the page one指的是頁碼那個意思