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Jyutping sing1 sing1 zi1 fo2 , ho2 ji5 liu4 jyun4
Pinyin xīng xīng zhī huǒ , kě yǐ liáo yuán

Definitions (Wiktionary)
  1. proverb
    an insignificant cause can have a massive effect

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Jyutping sing1 sing1 zi1 fo2 , ho2 ji5 liu4 jyun4
Pinyin xīng xing zhī huǒ , kě yǐ liáo yuán

Definitions (CC-CEDICT)
  1. a single spark can start a huge blaze (idiom); an insignificant cause can have a massive effect