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Jyutping wun6 cung1 hei3
Pinyin huǎn chōng qì

Definitions (CC-CEDICT)
  1. buffer (computing)
Definitions (Wiktionary)
  1. noun
    shock absorber
  2. noun
    bumper
  3. noun
    buffer
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)