envelope

英 [ˈenvələʊp]

美 [ˈenvəloʊp]

n. 信封; 塑料封套; 塑料封皮

复数：envelopes　第三人称单数：envelopes　

Oxford 3000 / Collins.2 / BNC.3672 / COCA.3879

习惯用语

push the envelope

超越界线；突破
to go beyond the limits of what is allowed or thought to be possible
He is a performer who consistently pushes the envelope of TV comedy.
他是一个在电视喜剧表演中不断寻求突破的演员。

noun

信封
Anenvelopeis the rectangular paper cover in which you send a letter to someone through the post.
PHRASE 挑战限制尺度；突破原有底线
If someonepushes the envelope, they do something to a greater degree or in a more extreme way than it has ever been done before.
1. 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时尚和设计受到人们的重视。
2. No cinema director had a more profound effect in pushing the envelope of acceptable family entertainment.
  在挑战家庭娱乐片的接受程度方面，没有哪个电影导演比他的影响更深远。

noun

any wrapper or covering
a flat (usually rectangular) container for a letter, thin package, etc.
the bag containing the gas in a balloon
Synonym:gasbag
the maximum operating capability of a system (especially an aircraft)
1. test pilots try to push the envelope
a natural covering (as by a fluid)
1. the spacecraft detected an envelope of gas around the comet
a curve that is tangent to each of a family of curves

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时尚和设计受到人们的重视。
He tore open the creamy envelope that had been enclosed in the letter
他撕开了随信寄来的奶油色信封。
Return the enclosed Donation Form today in the prepaid envelope provided.
请于今日将随函附上的捐款表格用所提供的邮资预付的信封寄回。
He sealed the envelope with paste.
他用浆糊粘信封。
He took a used envelope bearing an Irish postmark.
他拿了一个盖着爱尔兰邮戳的旧信封。
He sealed the envelope and put on a stamp
他封住信封并贴上一张邮票。
He took a thick envelope from an inside pocket and handed it to me.
他从内侧口袋里掏出一只厚信封递给我。
Use the enclosed envelope to return your completed survey.
请用随信附上的信封将填好的调查表寄回。
She reflected no longer than a second before she decisively slit the envelope.
她考虑了那么一瞬间就果决地撕开了信封。
He began to slit open each envelope
他开始裁开每个信封。