"离书"是个多义词，它可以指离书（词语）,离书（古风原创歌曲）。
离职证明书 Employment Separation Certificate
离职证实书 Employment Separation Certificate
离婚证明书 divorce certificate
拟遣送离境通知书 notification of intention to remove
规格偏离通知书 deviation notice
离职书 a letter of dimission
离婚判决书 divorce decree ; Judgment of Dissolution of Marriage
离婚申请书 divorce petition ; application for divorce
规格偏离授权书 deviation authorization
这是一本光怪陆离而又散漫无边的书，充满着许多漫长迂回的远路和从容不迫而通向死胡同的旅程。
This is a quirky, rambling book, full of lengthy detours and leisurely trips down blind alleys.
博尔赫斯的图书馆是“完美、完整而完全的”，由“所有的书”构成，它离数字时代的现实并不遥远。
The Borgesian library, which is "perfect, complete and whole" and composed of "all books", is not a far cry from reality in the digital age.
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