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Jyutping jau4 zing3 seon3 soeng1
Pinyin yóu zhèng xìn xiāng

Definitions (CC-CEDICT)
  1. post office box
Definitions (Wiktionary)
  1. noun
    post office box
Examples (粵典–words.hk)
  1. Cantonese
    邮政信箱
    郵政信箱
    jau4 zing3 seon3 soeng1
    • P.O. box