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Jyutping san6 duk6
Pinyin shèn dú

Definitions (CC-CEDICT)
  1. to preserve a proper behavior in private life
Definitions (Wiktionary)
  1. verb, literary
    to preserve proper behavior even in private life
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)