envelope

noun

1. 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
2. 塑料封套；塑料封皮
   a flat container made of plastic for keeping papers in

1. 信封
   An envelope is the rectangular paper cover in which you send a letter to someone through the post.
2. PHRASE 挑战限制尺度；突破原有底线
   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.
   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。

1. After completing and signing it, please return the form to us in the envelope provided.
   填完表格并签名后，请装进所提供的信封里寄还给我们。
2. Under the newspaper, atop a sheet of paper, lay an envelope.
   在报纸下面的一张纸上放着一个信封。
3. He took a largish buff envelope from his pocket.
   他从口袋里掏出一个相当大的米色信封。
4. 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。
5. Mr. Rohmbauer counted out the money and put it in an envelope.
   罗姆保先生把钱数好放在了一个信封里。
6. He'd placed his notes in the brown envelope. They hadn't been disturbed
   他将笔记放到那个棕色的信封里了，并没有人动过。
7. 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。
8. 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。
9. 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。
10. 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。
11. 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。
12. 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。
13. He gave me the envelope and we parted
    他给了我那个信封，我们就告别了。
14. She opened the perfumed envelope.
    她打开了带有香味的信封。
15. The envelope was postmarked Helsinki.
    信封上盖有赫尔辛基的邮戳。
16. 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。
17. Please remember to enclose a stamped addressed envelope when writing.
    请记得写信时在信封里放一个贴好邮票、写明地址的信封。
18. He sealed the envelope and put on a stamp
    他封住信封并贴上一张邮票。
19. 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。
20. He began to slit open each envelope
    他开始裁开每个信封。
21. The envelope has been tampered with and then taped shut again.
    信封被人动过手脚，然后又用胶带封上了。
22. 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。
23. 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。
24. Fold the letter and put it in an envelope.
    将信折好放进信封。
25. Please enclose a self-addressed envelope.
    请附上写明姓名地址的回邮信封。
26. If you turn the envelope upside down, the key will fall out.
    你如果把信封倒过来，钥匙就会掉出。
27. She recognized her mother's grace handwriting on the envelope.
    她认出信封上她母亲那娟秀的笔迹。
28. There's only an empty envelope with nothing in it.
    光剩了个空信封，里头没有信瓤儿。
29. He sealed the envelope with paste.
    他用浆糊粘信封。
30. On the envelope is written: “ from Wang ”.
    信封上写着“王缄”。

n.

push the envelope

• 超越界线；突破
  to go beyond the limits of what is allowed or thought to be possible
  1. 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

1. any wrapper or covering

2. a flat (usually rectangular) container for a letter, thin package, etc.

3. the bag containing the gas in a balloon

   Synonym:    gasbag

4. the maximum operating capability of a system (especially an aircraft)
   1. test pilots try to push the envelope

5. a natural covering (as by a fluid)
   1. the spacecraft detected an envelope of gas around the comet

6. a curve that is tangent to each of a family of curves