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Jyutping gwo3 muk6 bat1 mong4
Pinyin guò mù bù wàng

Definitions (CC-CEDICT)
  1. to have a highly retentive memory
  2. to have sth imprinted in one's memory
Definitions (粵典–words.hk)
  1. 語句
    唔​會​忘記​睇​過​嘅​嘢
    photographic memory; not to forget what one has seen
    • 佢過目不忘,記性好好。
      佢过目不忘,记性好好。
      He has excellent memory that he never forgets what he has seen.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to have a photographic memory
Examples (粵典–words.hk)
  1. Cantonese
    过目不忘
    過目不忘
    • photographic memory
  2. Cantonese
    佢过目不忘,记性好好。
    佢過目不忘,記性好好。
    • He has excellent memory that he never forgets what he has seen.