常用词会用上层词汇替代答:foolish,funny,stupid→absurb,comical,incredible,ridiculous full,rich→abundant,affluent,plentiful,productive proper(合法,正当的)→lawful,legal,constitutional false(假的)→plastic,artificial,unreal polite→considerate,courteous,diplomatic,thoughtful straight→perpendicular,sheer,upright brave→fearless,...