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Jyutping au1 si6
Pinyin ōu shì

Definitions (CC-CEDICT)
  1. Euclid
  2. abbr. for 歐幾里得|欧几里得
Examples (Wiktionary)
  1. Mandarin
    欧氏管
    歐氏管
    ōu shì guǎn
    • Eustachian tube