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  1. trial run

    • IPA[ˈˌtrī(ə)l ˈrən]

    美式

    • n.
      a test of the operation of a new system or product
    • noun: trial run, plural noun: trial runs

    • 釋義

    名詞

    • 1. a test of the operation of a new system or product the police used Sunday's US Cup game as a trial run for next year's games
    • 更多解釋

    英式

    • n.
      a preliminary test of how a new system or product works: the police used Sunday's US Cup game as a trial run for next year's games

    Oxford Dictionary

  2. 知識+