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  1. Oxford American Dictionary

    unproven

    • IPA[ˌənˈpro͞ov(ə)n]

    美式

    • adj.
      not demonstrated by evidence or argument to be true or existing；(of a new or alternative product, system, or treatment) not tried and tested
    • 釋義

    形容詞

    • 1. not demonstrated by evidence or argument to be true or existing long-standing but unproven allegations the risks are unproven
    • ▪ (of a new or alternative product, system, or treatment) not tried and tested new and unproven technologies