challengen.挑战；邀请比赛；盘问；质疑v.向 ... 挑战；盘问；质疑challenges abroad来自国外的挑战challenge witness要求证人回避challenge subject立法缺陷challenge feeding引导饲养法challenge a result[法] 对表决结果提出疑问challenge to fight[法] 挑战challenge in power执政挑战Challenge Response挑战应答challenge of juror反对作陪审员challenge a ruling对裁决提出异议