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  1. laborious

    • IPA[ləˈbɔːrɪəs]

    英式

    • adj.
      requiring considerable time and effort;(of speech or writing style) showing obvious signs of effort and lacking in fluency
    • 釋義

    形容詞

    • 更多解釋
    • IPA[ləˈbôrēəs]

    美式

    • adj.
      (especially of a task, process, or journey) requiring considerable effort and time: years of laborious training the work is very slow and laborious

    Oxford American Dictionary

  2. 知識+