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  1. Oxford Dictionary

    help key

    • n.
      a button on a mobile phone, computer keyboard, or other electronic device that, when pressed, gives assistance to the user in the form of displayed instructions

    • noun: help key, plural noun: help keys

    • 釋義

    名詞

    • 1. a button on a mobile phone, computer keyboard, or other electronic device that, when pressed, gives assistance to the user in the form of displayed instructions I pressed the help key in my menu