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Jyutping zing2 goi2
Pinyin zhěng gǎi

Definitions (CC-CEDICT)
  1. to reform
  2. to rectify and improve
Definitions (Wiktionary)
  1. verb
    to rectify and reform
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)