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Jyutping bat1 sik1 zi1 mou4
Pinyin bù shì zhī wú

Definitions (Wiktionary)
  1. phrase, idiomatic
    to be illiterate

[-]

Jyutping bat1 sik1 zi1 mou4
Pinyin bù shí zhī wú

Definitions (Wiktionary)
  1. phrase, idiomatic
    to be illiterate
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)