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Anh-Việt Anh-Anh
  • noun
    plural ~ bulbs
    [count] :a glass bulb or tube that produces light when it is supplied with electricity
    change a light bulb that has burned out - called also bulb
    a light bulb goes off/on
    chiefly US informal
    When a light bulb goes off/on (in your head), you suddenly understand something or have a great idea.
    After thinking about the problem for several days, a light bulb went off in her head, and she knew how to solve it.