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Jyutping saam1 gok3 cyu5
Pinyin sān jiǎo zhù

Definitions (Wiktionary)
  1. noun
    triangular prism
Examples (粵典–words.hk)
  1. Cantonese
    三角柱体
    三角柱體
    saam1 gok3 cyu5 tai2
    • triangular prism