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Jyutping san4 bat1 zi1 gwai2 bat1 gok3
Pinyin shén bù zhī guǐ bù jué

Definitions (CC-CEDICT)
  1. top secret
  2. hush-hush
Definitions (粵典–words.hk)
  1. 語句
    冇​人知​;​夠​秘密
    no one knows; in great secrecy; literally: the gods don't know and the ghosts are not aware of it
    • 佢用複製品換走咗幅名畫,以為神不知鬼不覺。
      佢用复制品换走咗幅名画,以为神不知鬼不觉。
      keoi5 jung6 fuk1 zai3 ban2 wun6 zau2 zo2 fuk1 ming4 waa2, ji5 wai4 san4 bat1 zi1 gwai2 bat1 gok3.
      He replaced the famous painting with the duplicate and thought nobody would know.
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    佢用复制品换走咗幅名画,以为神不知鬼不觉。
    佢用複製品換走咗幅名畫,以為神不知鬼不覺。
    keoi5 jung6 fuk1 zai3 ban2 wun6 zau2 zo2 fuk1 ming4 waa2, ji5 wai4 san4 bat1 zi1 gwai2 bat1 gok3.
    • He replaced the famous painting with the duplicate and thought nobody would know.