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Jyutping ngok3 kang2
Pinyin è gěng

Definitions (粵典–words.hk)
  1. x
Definitions (Kaifangcidian)
  1. 難吃 – 难吃
  2. 難下嚥 – 难下咽

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Jyutping wu1 gang2
Pinyin è gěng

Definitions (CC-CANTO)
  1. not tasty thus hard to swallow; hard to deal with