【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
