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Jyutping hoi1 bun2
Pinyin kāi běn

Definitions (CC-CEDICT)
  1. book format, similar to in-4°, in-8° etc (a 16-kai format 16開|16开[shi2 liu4 kai1] is roughly A4)
  2. abbr. to 開|开[kai1]
Definitions (Wiktionary)
  1. noun
    dimensions of a book
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    我一打开本书就睇到停唔到。
    我一打開本書就睇到停唔到。
    ngo5 jat1 daa2 hoi1 bun2 syu1 zau6 tai2 dou3 ting4 m4 dou2.
    • 我一打開書本就看到停不下來。
    • I can't stop reading once I open a book.
  2. Cantonese
    掀开本书
    掀開本書
    • to open the book