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Jyutping ngaa4 ku1
Pinyin yá gū

Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. noun
    braces (device for straightening teeth)
    (syn.) 牙套
Definitions (Kaifangcidian)
  1. 牙套
  2. 牙齒矯正器 – 牙齿矫正器
  3. 齒列矯正器 – 齿列矫正器

牙箍 [--]

Jyutping
Pinyin yá gū

Definitions (CC-CEDICT)
  1. orthodontic braces