她试了几次,但这个不成功的计划还是没能解决问题。

She tried several times, but the unsuccessful plan still didn't solve the problem.

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She tried several times, but the unsuccessful plan still didn't solve the problem.

unsuccessful 是由前缀 un-(表示"不、非")和形容词 successful(成功的)组成的形容词,字面意思是"不成功的"。前缀 un- 用于否定形容词或副词,表示相反的含义。

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