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Jyutping cin4 goe3 gei1
Pinyin qián jù jī

Definitions (Wiktionary)
  1. noun
    serratus anterior

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Jyutping cin4 geoi3 gei1
Pinyin qián jù jī

Definitions (CC-CEDICT)
  1. serratus anterior muscle (upper sides of the chest)