envelope
英 ['envələʊp; 'ɒn-]
- n. 信封，封皮；包膜；[天] 包层；包迹
词态变化
复数: envelopes;
助记提示
envelope 信封 “寄个信封去安慰老婆”
中文词源
envelope 信封
来自envelop,包围，围住。
英英释意
- 1. a flat rectangular paper container for papers
- 2. any wrapper or covering
- 3. a curve that is tangent to each of a family of curves
- 4. a natural covering (as by a fluid);
- "the spacecraft detected an envelope of gas around the comet"
- 5. the maximum operating capability of a system;
- "test pilots try to push the envelope"
- 6. the bag containing the gas in a balloon
英文词源
- envelope
- envelope: [18] English borrowed envelope from French enveloppe in the sense ‘wrapper’, and more specifically ‘cover for a letter’, at the start of the 18th century. It was a derivative of the verb envelopper ‘wrap’, whose ancestor, envoloper, gave English envelop in the 14th century. As in the case of its first cousin develop, the origin of the verb remains a mystery.
It is a compound formed from the prefix en- ‘in’ and voloper ‘wrap’, but the source of voloper has never been satisfactorily explained. It may come from a hypothetical Celtic base *vol- ‘roll’, but an equally good candidate is late Latin *faluppa ‘husk’, from which come Italian viluppo ‘bundle’ and viluppare ‘wrap’.
=> develop - envelope (n.)
- "a wrapper, an enclosing cover," specifically a prepared wrapper for a letter or other paper, 1705, from French enveloppe (13c.), a back-formation from envelopper "to envelop" (see envelop).
考试真题
- When a tree first starts growing in a certain area, it's likely that the 27 climatic envelope—the temperature, humidity, rainfall patterns and so on—suits it.
2016年12月六级真题（第一套）阅读 Section A
- A woman excused the interruption and handed me an envelope.
2017年高考英语全国卷2 完形填空 原文
- Further up, the weather changes— low clouds envelope the mountainsides, which are covered with thick grass.
2019年高考英语全国卷I 完形填空 原文
- Now think of your laptop, thinner than a brown-paper envelope, or your cellphone in the palm of your hand.
出自-2012年考研阅读原文
词组搭配
the back of an envelope
used to denote calculations or plans of the most sketchy kind
粗略的估算（或计划）
a proposal drawn up on the back of an envelope.
一项粗略的提议。
push the envelope (或 the edge of the envelope)
(informal)approach or extend the limits of what is possible
(非正式)几近极致
these are extremely witty and clever stories that consistently push the envelope of TV comedy.
这些故事极其诙谐巧妙，总是将电视喜剧推向极致。
push the envelope
To increase the operating capabilities of a technological system.
增强技术系统的运转能力
实用场景例句
- an airmail/padded/prepaid envelope
- 航空 / 有垫料夹层的 / 预付邮资信封
牛津词典
- writing paper and envelopes
- 信纸和信封
牛津词典
- 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。
柯林斯高阶英语词典
- 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。
柯林斯高阶英语词典
- The risk factors, he added, " are correctable and need to be corrected before treatment or concurrently. "
- 他补充: “ 危险因子是确切的,应该在治疗前或者同时被处理. ”
期刊摘选
- This old stamp isn't sticky any more; I shall have to gum it down onto the envelope.
- 这张旧邮票的背面没黏性了, 我得用胶把它粘在信封上.
《简明英汉词典》
- On the envelope is written: " from Wang ".
- 信封上写着 “ 王缄 ”.
《现代汉英综合大词典》
- 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.
《现代汉英综合大词典》
- I folded the letter and then put it into the envelope.
- 我把信折好后放进信封里.
《简明英汉词典》
- A key was enclosed in the envelope.
- 信封中装有一把钥匙.
《简明英汉词典》
- There's only an empty envelope with nothing in it.
- 光剩了个空信封,里头没有信瓤儿.
《现代汉英综合大词典》
- He deftly folded the typed sheets and replaced them in the envelope.
- 他灵巧地将打有字的纸折好重新放回信封.
《简明英汉词典》
- Make sure the stamp is properly glued to the envelope.
- 务必把邮票在信封上贴好.
《简明英汉词典》
- Fold the letter and put it in an envelope.
- 将信折好放进信封.
《现代汉英综合大词典》
- He stuck down the envelope and dropped it into the mailbox.
- 他把信封粘好后便投进邮筒.
《简明英汉词典》
- Before posting a letter, you should enclose it in an envelope.
- 在把信寄出之前你必须把它装入信封内.
《简明英汉词典》
- A good way to get a stamp off an envelope is to soak it off.
- 从信封上揭下邮票的一个好办法就是把它泡掉.
《简明英汉词典》
- Make sure you've signed the cheque before sealing the envelope.
- 一定要在支票上签了名再封信封。
《牛津高阶英汉双解词典》
- Please enclose a stamped addressed envelope to get your test results.
- 请附姓名地址邮资俱全的信封，以便把化验结果寄给你。
《牛津高阶英汉双解词典》
- 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。
柯林斯例句
- He gave me the envelope and we parted.
- 他给了我那个信封，我们就告别了。
柯林斯例句
- She opened the perfumed envelope.
- 她打开了带有香味的信封。
柯林斯例句
- 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。
柯林斯例句
- 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。
柯林斯例句
- Nancy quickly tore open the envelope.
- 南希飞快撕开信封。
柯林斯例句
- We couldn't even summon up the energy to open the envelope.
- 我们甚至连打开信封的力气都没有了。
柯林斯例句
- 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。
柯林斯例句