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Jyutping tai3 gok3
Pinyin tì jiǎo

Definitions (Wiktionary)
  1. noun
    understudy; substitute

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Jyutping tai3 gok3
Pinyin tì jué

Definitions (CC-CEDICT)
  1. (theater) understudy
Definitions (Wiktionary)
  1. noun
    understudy; substitute