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  1. downgrade

    • v.
      reduce to a lower grade, rank, or level of importance
    • n.
      an instance of reducing someone or something's rank, status, or level of importance;a downward gradient on a railway or road
    • noun: downgrade, plural noun: downgrades

    • 釋義
    • 片語

    動詞

    名詞

    • 1. an instance of reducing someone or something's rank, status, or level of importance downgrades by debt-rating agencies outnumber upgrades by five to one
    • 2. North American a downward gradient on a railway or road a steep downgrade for which he had to put the car in second
  2. 知識+