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Jyutping sing4 zing3 bei2
Pinyin chéng zhèng bǐ

Definitions (Wiktionary)
  1. verb
    to be proportional
    (syn.) 呈正比
Examples (粵典–words.hk)
  1. Cantonese
    薪酬同学历唔一定成正比。
    薪酬同學歷唔一定成正比。
    • Salary and education level are not really directly proportional.