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Jyutping jat1 gei6 zi1 coeng4
Pinyin yī jì zhī cháng

Definitions (CC-CEDICT)
  1. proficiency in a particular field (idiom)
  2. skill in a specialized area (idiom)
Definitions (粵典–words.hk)
  1. 名詞
    一門專​業​嘅​技能
    professional skill; speciality; proficiency in a particular field
    • 喺香港,冇一技之長好難立足。
      喺香港,冇一技之长好难立足。
      hai2 hoeng1 gong2, mou5 jat1 gei6 zi1 coeng4 hou2 naan4 laap6 zuk1.
      You have to have some professional skills in Hong Kong to succeed.
Definitions (Wiktionary)
  1. phrase, idiomatic
    professional skill; proficiency
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #4886
Examples (粵典–words.hk)
  1. Cantonese
    喺香港,冇一技之长好难立足。
    喺香港,冇一技之長好難立足。
    hai2 hoeng1 gong2, mou5 jat1 gei6 zi1 coeng4 hou2 naan4 laap6 zuk1.
    • You have to have some professional skills in Hong Kong to succeed.