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Jyutping fo2 ngau4
Pinyin huǒ niú

Definitions (CC-CANTO)
  1. (noun) an AC adaptor; an electric transformer; an electrical ballast
Definitions (粵典–words.hk)
  1. 名詞、俚語
    即​係​消防​員​,​帶有​輕​蔑​嘅​成份
    derogatory term for a firefighter; literally: fire bull
  2. 名詞
    又名​變壓器​、​充電器​,​係​一種​俾​電腦​、​電話​等​使用​嘅​電​子​零件​,​因為​入​屋電力​多​為​高壓​交流​電​(​例如​香港​係​220V​ ​AC​)​,​火牛​會​將​佢​轉​做​低​壓​直流​電​(​例如​12V​ ​DC​、​5V​ ​DC​等​)​俾電子​儀器​直接​用​或者​叉落​所屬​電池​(​量​詞​:​隻​/​個​)
    transformer; charger
    • 部電腦冇電,又唔記得帶火牛。
      部电脑没电,又唔记得带火牛。
      bou6 din6 nou5 mou5 din6, jau6 m4 gei3 dak1 daai3 fo2 ngau3.
      My computer is out of battery, and I forgot to bring the charger.
    • 呢隻火牛咩電話都啱用㗎。
      呢只火牛咩电话都啱用㗎。
      ni1 zek3 fo2 ngau4 me1 din6 waa2 dou1 ngaam1 jung6 gaa3.
      This charger can be used for all kinds of cellphones.
    • 隻火牛放咗落喼入面喇。
      只火牛放咗落喼入面喇。
      zek3 fo2 ngau4 fong3 zo2 lok6 gip1 jap6 min6 laa3.
      The transformer is in the suitcase.
  3. 近義詞
    叉電器
Definitions (Kaifangcidian)
  1. 變壓器 – 变压器
Examples (粵典–words.hk)
  1. Cantonese
    部电脑没电,又唔记得带火牛。
    部電腦冇電,又唔記得帶火牛。
    bou6 din6 nou5 mou5 din6, jau6 m4 gei3 dak1 daai3 fo2 ngau3.
    • My computer is out of battery, and I forgot to bring the charger.
  2. Cantonese
    呢只火牛咩电话都啱用㗎。
    呢隻火牛咩電話都啱用㗎。
    ni1 zek3 fo2 ngau4 me1 din6 waa2 dou1 ngaam1 jung6 gaa3.
    • This charger can be used for all kinds of cellphones.
  3. Cantonese
    只火牛放咗落喼入面喇。
    隻火牛放咗落喼入面喇。
    zek3 fo2 ngau4 fong3 zo2 lok6 gip1 jap6 min6 laa3.
    • The transformer is in the suitcase.
  4. Cantonese
    火牛唔多够力,部电脑行得唔够顺。
    火牛唔多夠力,部電腦行得唔夠順。
    fo2 ngau4 m4 do1 gau3 lik6.
    • The transformer works poorly that the computer does not run smoothly enough.
  5. Cantonese
    火牛过唔到电,唔知有没得整呢?
    火牛過唔到電,唔知有冇得整呢?
    fo2 ngau4 gwo3 m4 dou2 din6, m4 zi1 jau5 mou5 dak1 zing2 ne1?
    • The transformer does not work in the transfer of electric current. Can it be fixed?