在备考GRE考试中，对词汇量上的要求很高，若没有词汇量的积累就无法顺畅答题。需要补充自己的知识结构，争取更大的词汇储备，在备考前需要花费一定的经历和时间去记忆词汇。下面小编为大家整理了关于GRE词汇相关内容，仅供大家参考!

　　impugn: 表示怀疑; to criticize or challenge as false or questionable in nature

　　1) to attack with words; to question the truthfulness or integrity

　　2) to challenge as false, to assail

　　impugn <> uphold 指责，攻击，反对<>支持

　　impugn <> consent

　　impugn <> extol 9

　　impugn <> vindicate 责难<>辩护

　　impugn <> champion攻击，指责<>拥护，支持

　　impugn <> endorse 攻击，指责<>认可

　　impugn <> approve, laud, compliment

　　impugn <> appease

　　impugn <> grantant

　　impugn = charge yMdu

　　impugn 责难, 非难, 驳斥 <> champion/vindicate/endorse

　　impugn (criticize) <> uphold (support) should be correct rather than appease (soothe).

　　inviolable<>impugn 不可侵犯的,不可征服的<>指责

　　The defense lawyer impugned the witness's testimony, which set back the prosecution's case.

　　If I believe the man is a fraud I will impugn his comments.

　　【考法1】v. 责难，攻击抨击： to attack as false or questionable; challenge in argument

　　【例】impugn a political opponent's character 就政治对手的人品发难

　　【近】 attack, assail, contradict, contravene, cross, disaffirm, deny, gainsay, negate, negative, traverse onm

　　【反】 advocate, back, support, uphold 支持;authenticate 证实，证明

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