bettered
v.
改善，提高( better的过去式和过去分词 );
例句:
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He bettered his last year's record.
他刷新了他去年的记录.
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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。
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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.
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Such names couldn't be bettered in the R pantheon.
来自BBC
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Yet to this day Costello has rarely bettered this material.
来自BBC
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It might have done had red bettered blue at Wembley.
来自BBC