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Jyutping siu2 sou3 paa3 coeng4 gai3
Pinyin xiǎo shù pà zhǎng jì

Definitions (粵典–words.hk)
  1. 語句
    就算​係​好​細​嘅​數​目​,​日積​月​累​,​都​可以​變到​好​大​;​通常​攞​嚟​形容​錢​,​尤其​是​係​支出
    small numbers accumulate over time to make a great sum; usually used to describe money, especially expenditures; literally '(even for) small amounts, one fears long-term calculation'
    • 呢部老爺車成日壞,小數怕長計,最好就買返部新車嘞。
      呢部老爷车成日坏,小数怕长计,最好就买返部新车嘞。
      ni1 bou6 lou5 je4 ce1 seng4 jat6 waai6, siu2 sou3 paa3 coeng4 gai3, zeoi3 hou2 zau6 maai5 faan1 bou6 san1 ce1 laak3.
      This old car breaks down all the time. The repair costs will mount up over the years, so you'd better buy a new one.
Definitions (Kaifangcidian)
  1. 小數加起來就成大數目 – 小数加起来就成大数目

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Jyutping siu2 sou3 paa3 zoeng2 gai3
Pinyin xiǎo shù pà cháng jì

Definitions (CC-CANTO)
  1. saving up a little by little can accumulate to a big amount
Examples (粵典–words.hk)
  1. Cantonese
    呢部老爷车成日坏,小数怕长计,最好就买返部新车嘞。
    呢部老爺車成日壞,小數怕長計,最好就買返部新車嘞。
    ni1 bou6 lou5 je4 ce1 seng4 jat6 waai6, siu2 sou3 paa3 coeng4 gai3, zeoi3 hou2 zau6 maai5 faan1 bou6 san1 ce1 laak3.
    • This old car breaks down all the time. The repair costs will mount up over the years, so you'd better buy a new one.
  2. Cantonese
    小数怕长计
    小數怕長計
    siu2 sou3 paa3 coeng4 gai3
    • small numbers accumulate over time to make a great sum