push the envelope1 especially American EnglishAmE to try to go beyond the normal limits of something 超出正常限度 a musician who pushes the envelope of improvisation 突破即兴演奏界限的音乐家
2 American EnglishAmE to do something that is new and that goes beyond the limits of what has already been done in a particular area of activity 创新突破push the envelope of/on ideas that push the envelope of design and construction 开创设计和建筑新境界的观点
push the envelope• It needs some one who understands its basic talent, some one who will help it to push the envelope of its artificial intelligence.• Both were known to push the envelope of life.