push the envelope
成語所屬單字envelope
push the envelope — 慣用語
1. To go beyond the usual or accepted limits of what is considered possible, accept
1.慣用語
釋義
突破極限；挑戰界線
To go beyond the usual or accepted limits of what is considered possible, acceptable, or safe in a particular area.
例句
The fashion designer pushed the envelope with bold colors and unusual fabric combinations.
Tunde's startup pushed the envelope by using AI to solve a problem nobody had tackled before.