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Jyutping fui3 gwo3 zi6 san1
Pinyin huǐ guò zì xīn

Definitions (CC-CEDICT)
  1. to repent and start afresh (idiom); to turn over a new leaf
Definitions (Wiktionary)
  1. phrase, idiomatic
    to turn over a new leaf
    (syn.) 放下屠刀, 改邪归正, 改邪歸正, 棄暗投明, 弃暗投明, 改行自新, 重新做人, 革面洗心, 改恶从善, 弃旧图新, 痛改前非, 改过自新, 改正错误, 改過自新, 棄舊圖新, 改正錯誤, 改惡從善, 洗心革面