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Jyutping daai6 jau5 bei1 jik1
Pinyin dà yǒu bì yì

Definitions (CC-CEDICT)
  1. bringing great benefits (idiom); very useful
  2. of great service
  3. to help greatly
  4. to serve one well
Examples (粵典–words.hk)
  1. Cantonese
    阅读对于提高写作水平大有裨益。
    閲讀對於提高寫作水平大有裨益。
    jyut6 duk6 deoi3 jyu1 tai4 gou1 se2 zok3 seoi2 ping4 daai6 jau5 bei1 jik1.
    • Reading helps promote the proficiency of writing a lot.
Examples (Wiktionary)
  1. Mandarin
    大有裨益
    大有裨益
    dà yǒu bì yì
    • to be of great advantage