n.挑战( challenge的名词复数 )；要求；（警卫等）查问口令；怀疑 双语释义：n.(名词)[C]挑战; 邀请比赛 invitation or call to sb to take part in a game, contest, fight, etc. to prove who is better, strong, more able, etc.[C]怀疑,质问; 要求 statement or action which questions or disputes sth[C]艰巨的任务 dif