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Jyutping fan5 bat1 zat6 syu1
Pinyin fèn bǐ jí shū

Definitions (CC-CEDICT)
  1. to write at a tremendous speed
Examples (粵典–words.hk)
  1. Cantonese
    奋笔疾书
    奮筆疾書
    fan5 bat1 zat6 syu1
    • to write furiously; to write non-stop