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Jyutping zi1 di1 m4 zi1 di1
Pinyin zhī dī wú zhī dī

Definitions (Kaifangcidian)
  1. 一知半解

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Jyutping zi1 di1 m4 zi1 di1
Pinyin zhī dī n2 zhī dī

Definitions (CC-CANTO)
  1. (slang) knowing a part of a story/an event/a situation but not all; knowing a little bit of a story/an event/a situation but not all