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Jyutping suk1 gan2
Pinyin suō jǐn

Definitions (CC-CEDICT)
  1. to tighten
  2. to contract
  3. to shrink in
Definitions (Wiktionary)
  1. verb
    to tighten
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)