Foredge ( Fore - edge ): Outer edge ( cutting edge ) of a book, opposite the binding edge margin.

切口(外白边 ): 书本的外边 ( 裁切边 );与装订边相对. ( 参见下文).

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Origin of anti - edge, short edge margin of concentration is not something we can control.

缘起缘灭, 缘浓缘淡,不是我们能够控制的.

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