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Jyutping jat6 syu1
Pinyin yì shū

Definitions (Wiktionary)
  1. noun
    lost ancient text
    (syn.) 逸書, 逸书
  2. name
    Classic of History (a collection of documents and speeches alleged to have been written by rulers and officials of the early Zhou Dynasty and before)
    (syn.) 書經, 尚書, 尚书, 书经, 逸書, 逸书
Examples (Wiktionary)
  1. Mandarin
    佚书
    佚書
    yì shū
    • lost ancient book