豪厘千里
háo​lí​qiān​lǐ

small error leads to a huge difference

  1. 豪 háo
    fine hair
    (bound form) a fine, long hair
  2. 厘 釐 lí noun
    [unit of measure]
    (bound form) a unit of weight, length, or area equal to one-thousandth or one-hundredth of a standard unit; specifically one-thousandth of a 元 yuán or 0.05 grams; also used for centi- in metric terms like 厘米 lí​mǐ
  3. 千里 qiān​lǐ
    a thousand li
    one thousand 里 lǐ; approximately 500 kilometers; used metaphorically to mean a very long distance