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Jyutping zi6 koeng4 bat1 sik1
Pinyin zì qiáng bù xí

Definitions (Wiktionary)
  1. phrase, idiomatic
    to strive to better oneself constantly and never slacken

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Jyutping zi6 goeng6 bat1 sik1
Pinyin zì qiáng bù xī

Definitions (粵典–words.hk)
  1. 動詞
    靠​自己​努力​,​永不​放棄
    to strive hard without letting up

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Jyutping zi6 koeng4 bat1 sik1
Pinyin zì qiáng bù xī

Definitions (CC-CEDICT)
  1. to strive unremittingly
  2. self-improvement
Definitions (Wiktionary)
  1. phrase, idiomatic
    to strive to better oneself constantly and never slacken
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #5559
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    马不但象征著刚健、高昂、昌盛、发达,还代表著奋斗不止、自强不息的民族精神。
    馬不但象徵著剛健、高昂、昌盛、發達,還代表著奮鬥不止、自強不息的民族精神。
    mǎ bù dàn xiàng zhēng zhù gāng jiàn 、 gāo áng 、 chāng shèng 、 fā dá , hái dài biǎo zhù fèn dòu bù zhǐ 、 zì qiáng bù xī de mín zú jīng shén 。
    • The horse does not just represent energy, high spirits, prosperity, development, but also stands for a national spirit of struggling on without stopping, and of striving on without giving up.
Examples (粵典–words.hk)
  1. Cantonese
    自强不息
    自強不息
    zi6 koeng4 bat1 sik1
    • to make unremitting efforts to improve oneself