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　

高考CET4CET6考研医学

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

习惯用语

n.

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。

牛津词典

noun

• 信封
  a flat paper container used for sending letters in
  1. writing paper and envelopes
     信纸和信封
  2. an airmail/padded/prepaid envelope
     航空 / 有垫料夹层的 / 预付邮资信封
• 塑料封套；塑料封皮
  a flat container made of plastic for keeping papers in

柯林斯词典

• 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。

英英释义

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

双语例句

• She folded up her letter, licking the envelope flap with relish
  她把信折好，用力舔了舔信封的折口。
• There's only an empty envelope with nothing in it.
  光剩了个空信封，里头没有信瓤儿。
• 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。
• Liz picked up the blue envelope and turned it over curiously
  莉兹拿起蓝色信封，好奇地翻过来看。
• Write your letter and seal it in a blank envelope
  信写好后把它装进空白信封里封好。
• 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。
• She opened the perfumed envelope.
  她打开了带有香味的信封。
• 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。
• 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。
• 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。