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Jyutping gou1 jiu3
Pinyin gāo yāo

Definitions (Wiktionary)
  1. name
    (historical) Gaoyao Gorge (a strategic gorge on the Xi River, now named Lingyang Gorge)
  2. name
    (historical) Gaoyao (a former prefecture of Guangdong, China)
  3. name
    Gaoyao (a district of Zhaoqing, Guangdong, China, formerly a county or a county-level city)

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Jyutping gou1 jiu3
Pinyin gāo yào

Definitions (CC-CEDICT)
  1. Gaoyao, county-level city in Zhaoqing 肇慶|肇庆[Zhao4 qing4], Guangdong