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  1. Oxford Dictionary

    non-renewable

    • adj.
      (of a contract or agreement) not able to be renewed；(of a natural resource or source of energy) existing in finite quantity; not capable of being replenished
    • n.
      a non-renewable natural resource or source of energy
    • 釋義

    形容詞

    • 1. (of a contract or agreement) not able to be renewed a non-renewable 15-year term of office
    • 2. (of a natural resource or source of energy) existing in finite quantity; not capable of being replenished non-renewable fossil fuels

    名詞

    • 1. a non-renewable natural resource or source of energy sustainability of the supply of non-renewables such as gas is crucial