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Jyutping bun3 seoi1 kei4
Pinyin bàn shuāi qí

Definitions (Wiktionary)
  1. noun
    half-life

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Jyutping bun3 seoi1 kei4
Pinyin bàn shuāi qī

Definitions (CC-CEDICT)
  1. half-life
Definitions (粵典–words.hk)
  1. 名詞
    指一種​物​質​嘅​濃​度​經​過​某​啲​反​應​降到​一半​要​用​嘅​時​間​(​量​詞​:​段​)
    half-life
Definitions (Wiktionary)
  1. noun
    half-life
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)