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Jyutping kei4 fo3 ho2 geoi1
Pinyin qí huò kě jū

Definitions (CC-CEDICT)
  1. rare commodity worth hoarding
  2. object for profiteering
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, idiomatic
    to rely on some special skill, advantage, accomplishment, etc. to profiteer