Deep in the dungeons is a hidden chamber where mages write their forbidden books.

在地下城深处有一个隐藏的密室中，存放着魔法师书写的魔法禁书。

youdao

By stacking up the chairs, I often climbed into the attic and stole "forbidden" books to read, then returned them back before dad went off from work.

从小那阁楼就让我着迷，我把椅子摞起来，偷“禁书”读，在父亲下班前再把书放回去。

youdao

Experts urge Forbidden City to open accounting books.

专家呼吁故宫公开账簿。

youdao

From the early days of printing the church had tried to censor books, drawing up an index of forbidden ones.

ECONOMIST: Millennium issue: COMMUNICATION

When I was doing doctoral research in the late 1980s, the University of Jordan housed a massive collection of books in what was then called the "forbidden room" of the school's library.

NPR: Historian Robert Satloff

Fourteen Ming and 10 Qing emperors called the Forbidden City home and the intrigue, scandal and drama that went on here has inspired countless films and books.

BBC: Beijing's once Forbidden City