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Jyutping fu2 hau2 po4 sam1
Pinyin kǔ kǒu pó xīn

Definitions (CC-CEDICT)
  1. earnest and well-meaning advice (idiom); to persuade patiently
Definitions (粵典–words.hk)
  1. 形容詞
    為​咗​某人​着想​,​誠心​又​耐心​噉​勸​告​佢
    used to describe somebody who persuades another person earnestly and patiently with good intentions
    • 以前家康阿媽苦口婆心勸佢勤力讀書,佢又唔聽,而家咪後悔囉。
      以前家康阿妈苦口婆心劝佢勤力读书,佢又唔听,而家咪后悔啰。
      ji5 cin4 gaa1 hong1 aa3 maa1 fu2 hau2 po4 sam1 hyun3 keoi5 kan4 lik6 duk6 syu1, keoi5 jau6 m4 teng1, ji4 gaa1 mai6 hau6 fui3 lo1.
      Ka-hong's mum kept advising him to study hard but he didn't follow her. Now he regrets.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to persuade earnestly and patiently
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    以前家康阿妈苦口婆心劝佢勤力读书,佢又唔听,而家咪后悔啰。
    以前家康阿媽苦口婆心勸佢勤力讀書,佢又唔聽,而家咪後悔囉。
    ji5 cin4 gaa1 hong1 aa3 maa1 fu2 hau2 po4 sam1 hyun3 keoi5 kan4 lik6 duk6 syu1, keoi5 jau6 m4 teng1, ji4 gaa1 mai6 hau6 fui3 lo1.
    • Ka-hong's mum kept advising him to study hard but he didn't follow her. Now he regrets.