envelope是什么意思

词组	envelope
释义	envelope BrE /ˈenvələʊp, ˈɒn-/ NAmE /ˈenvəloʊp, ˈɑːn-/●push the ˈenvelopedo sth in an extreme way in order to find out to what degree sth is possible 以极端的方式试探某事的极限◆Advertisements seem to be pushing the envelope of taste every day.广告每天都好像在试探品位的极限。◆People these days like to push the envelope with extreme sports.如今人们喜欢以极限运动来挑战自我。▸ ˈenvelope-pushing noun , adjective ◆envelope-pushing technology突破性技术 ORIGIN This expression comes from the aeroplane industry. A plane’s envelope was the limit of its performance. Test pilots would need to push (the edge of) the envelope to see what the plane could and could not do. 这个表达法源于飞机制造业。envelope 是飞机的性能极限。试飞员需要测试其极限以确定飞机的性能。

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