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Jyutping fu2 hau2
Pinyin kǔ kǒu

Definitions (CC-CEDICT)
  1. lit. bitter taste (cf good medicine tastes bitter 良藥苦口|良药苦口)
  2. fig. earnestly (of warning, advice)
Definitions (Wiktionary)
  1. verb
    to be bitter to the taste
  2. verb, figuratively
    to admonish earnestly
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    良药苦口。
    良藥苦口。
    liáng yào kǔ kǒu 。
    • Good medicine is bitter to the mouth.
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.
  2. Cantonese
    自从佢畀人炒咗之后,佢日日都苦口苦面噉。
    自從佢畀人炒咗之後,佢日日都苦口苦面噉。
    zi6 cung4 keoi5 bei2 jan4 caau2 zo2 zi1 hau6, keoi5 jat6 jat6 dou1 fu2 hau2 fu2 min6 gam2.
    • Since he got fired, he has worn a gloomy face every day.