生詞本
簡明釋義
n.信封，封皮；殼層，外殼；包裹物；[生物學]膜，包袋
復數：envelopes
以下結果由 金山詞霸 提供
柯林斯高階英漢詞典 短語詞組 同反義詞
1.N-COUNT信封An envelope is the rectangular paper cover in which you send a letter to someone through the post.
2.PHRASE挑戰限制尺度；突破原有底線If someone pushes the envelope, they do something to a greater degree or in a more extreme way than it has ever been done before.
There's a valuable place for fashion and design that pushes the envelope a bit...
在原有尺度上有所突破的時尚和設計受到人們的重視。
No cinema director had a more profound effect in pushing the envelope of acceptable family entertainment.
在挑戰家庭娛樂片的接受程度方面，沒有哪個電影導演比他的影響更深遠。