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Jyutping hoi1 gyun2 jau5 jik1
Pinyin kāi juàn yǒu yì

Definitions (CC-CEDICT)
  1. lit. opening a book is profitable (idiom); the benefits of education
Definitions (Wiktionary)
  1. proverb
    reading is beneficial
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    开卷有益。
    開卷有益。
    hoi1 gyun2 jau5 jik1.
    • Reading is good for us.
Examples (Wiktionary)
  1. Mandarin
    开卷有益
    開卷有益
    kāi juǎn yǒu yì
    • reading is beneficial