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Jyutping laang1 zung1
Pinyin lang zhōng

Definitions (CC-CANTO)
  1. an alarm clock, ring a bell
Definitions (粵典–words.hk)
  1. 名詞
    單車​上面​用​嚟​剎車​個鐘​;​鬧鐘​;​響​嚟​提人夠​鐘​嗰​啲​鐘​(​學校​小息​打​唥​鐘​)
    bicycle bell; alarm clock; school bell
    • 打唥鐘
      打唥钟
      daa2 laang1 zung1
      to ring (school) bell
  2. 參看
    冷鐘
Definitions (Wiktionary)
  1. noun, Cantonese
    alarm clock
  2. noun, Cantonese
    bell on a bicycle
Definitions (Kaifangcidian)
  1. 鈴 – 铃
  2. 鈴鐺 – 铃铛
  3. 車鈴 – 车铃
  4. 電鈴 – 电铃
  5. 自行車鈴鐺 – 自行车铃铛
  6. 鬧鐘 – 闹钟
Examples (粵典–words.hk)
  1. Cantonese
    唥钟
    唥鐘
    laang1 zung1
    • ring; bell
  2. Cantonese
    打唥钟
    打唥鐘
    daa2 laang1 zung1
    • to ring (school) bell