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He bettered his last year's record.他刷新了他去年的记录.As an account of adolescence it could hardly be bettered.作为描写青春期的书，它已几臻完美。One of his first experiments after the telephone bettered the phonograph.他在发明电话后首次的一项实验中,改善了留声机...
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One of his first experiments after the telephone bettered the phonograph.他在发明电话后首次的一项实验中,改善了留声机的品质.He bettered his last year's record.他刷新了他去年的记录.As an account of adolescence it could hardly be bettered.作为描写青春期的书，它已几...
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v.改善，提高( better的过去式和过去分词 )...