2COVERa layer of something that surrounds something else 外裹物;外层
envelope of
an envelope of gases around the planet
包围着行星的大气层
3push the envelopeespecially American EnglishAmE to try to go beyond the normallimits of something 超出正常限度
a musician who pushes the envelope of improvisation
突破即兴演奏界限的音乐家
Examples from the Corpus
push the envelope• Each time Walters asked his employees to push the envelope, he said, "If you can dream it, you can do it."• It needs some one who understands its basictalent, some one who will help it to push the envelope of its artificialintelligence.• Both were known to push the envelope of life.
nCOLLOCATIONS
verbs
open an envelope
I opened the envelope, pulled out the document and read it.
tear/rip open an envelope (=open it quickly and roughly)
My fingers trembled as I tore open the envelope.
slit open an envelope (=open it by cutting it)
I quickly slit open the envelope.
seal an envelope (=close it)
She sealed the envelope and stuck on a stamp.
stuff envelopes (=to put letters or documents into many envelopes, for example as part of a political campaign)
We need volunteers to stuff envelopes and deliver leaflets.
adjectives
a pre-paid/stamped-addressed envelope (=with a stamp/a stamp and an address already on it)
A copy of the rules can be obtained by sending a stamped-addressed envelope to the above address.
a self-addressed envelope (=one with your own name and address on)
Enclose a self-addressed envelope with your application form.
a brown/white etc envelope
There was a large brown envelope on his desk.
a manila envelope (=made from strong brown paper)
a sealed envelope (=one that is firmly closed)
The contract was delivered by special messenger in a sealed envelope.
phrases
on the back of an envelope (=used to describe a calculation or plan that is written down quickly on any available small piece of paper)
She scribbled a few ideas on the back of an envelope.
Examples from the Corpus
envelope• That night at the meeting, Karen had a big brownenvelope in her bag.• The solution is also obvious - pleasecheckenvelopes are not too tightly packed, if in doubt use a bigger envelope!• Entries must be on the back of a postcard or envelope no bigger than 5in × 6in. 2.• The small jetwallowed in the sky, on the edge of the envelope of control.• With trembling hands Mr Utterson opened the envelope.• Cornelius sat himself down and regarded the envelopes with suspicion.
stuffing envelopes• Rae started by stuffing envelopes and in a year was directing the volunteers herself.• She also worked in abortionclinicsstuffing envelopes or providing counseling over the phone.• She doesn't think that stuffing envelopes for the Democrats once every four years makes her an activist.
ADJECTIVE | VERB + ENVELOPE | ENVELOPE + VERB | PREPOSITION | PHRASESADJECTIVE➤bulky, fat, thick厚實的/塞得滿滿的/裝得很厚的信封➤large, small大信封;小信封➤sealed已封口的信封▸➤return, self-addressed, stamped addressed (BrE) 回郵/帶回信地址的/貼足郵票的回郵信封◇Please enclose a self-addressed envelope if you would like a reply.想要收到回覆者,請附寄一個帶回信地址的信封。◇a self-addressed stamped envelope (NAmE) 一個貼足郵票並寫明回郵地址的信封➤postage-paid, prepaid, reply-paid (BrE) 郵資已付的/預付郵資的/對方付費的信封◇To apply, use the enclosed reply-paid envelope (no stamp needed).申請可用隨附的已付費信封。➤padded有墊料夾層的信封▸➤airmail航空信封▸➤brown, buff, manila, plain, white牛皮紙/淺黃褐色/馬尼拉紙/普通/白色信封◇an official-looking manila envelope一個看起來很正式的馬尼拉紙信封VERB + ENVELOPE➤open, rip open, slit open, steam open, tear open打開/扯開/裁開/蒸汽熏開/撕開信封◇The letter was suspicious, and I considered steaming open the envelope.這封信有點兒可疑,我認為應該用蒸汽拆封。➤address, mark在信封上寫上地址/做標記◇an envelope addressed in my mother's round handwriting用我母親的圓體字跡書寫地址的信封◇The envelope was marked 'Personal'.信封上標有“私人信件”字樣。➤seal封上信封➤mail, post, send郵寄信封➤stuff塞滿信封◇You don't earn much stuffing envelopes.將信封裏塞得滿滿的不會給你帶來多大的好處。ENVELOPE + VERB➤contain sth, enclose sth信封裝有某物;隨函附寄某物PREPOSITION➤in an/the envelope在信封裏◇I had put the letter in the wrong envelope.我把信放錯了信封。➤into an/the envelope裝進信封裏◇He quickly stuffed the money back into the envelope.他迅速把錢塞回信封裏。➤on an/the envelope在信封上◇I couldn't read the address on the envelope.我看不清楚信封上的地址。➤envelope of⋯的封皮◇He gave her the envelope of certificates.他給她證書的封套。PHRASES➤the back of an envelope信封背面◇I scribbled his phone number on the back of an envelope.我在一個信封的背面草草記下了他的電話號碼。
envelope ♦︎ file ♦︎ folder ♦︎ binder ♦︎ clipboard ♦︎ portfolioThese words all mean a flat container or cover for holding sheets of paper.这些词均表示信封、文件夹、活页夹等。PATTERNS AND COLLOCATIONS 句型和搭配◆in an envelope / a file / a folder / a binder / a portfolio◆a plastic envelope / folder / binder / clipboard / portfolio◆to open an envelope / a file / a folder / a binder◆an envelope / a file / a folder / a binder / a portfolio containing sth■envelope [countable] a flat paper container used for sending letters in; a flat container made of plastic for keeping papers in信封;塑料封套◆The envelope was addressed in my mother's round handwriting.信封上所写的姓名地址是我母亲那浑圆的笔迹。◆Each item was tagged and sealed in a plastic envelope.每件物品都贴了标签,封进了塑料封套。■file [countable] a box or folded piece of card, often with a wire or metal rod, used to store papers, letters and other documents in an ordered way, especially in an office文件夹;卷宗◆A stack of files awaited me on my desk.我桌上有一堆文件等我处理。◆ (BrE) a lever arch / box file文件夹;文件箱◆ (NAmE) a file folder文件夹 see also file ⇨ documentnoun, file ⇨ classifyverb■folder ˈfəʊldə(r); NAmEˈfoʊldər [countable] a cover for holding loose papers together, especially one made out of a piece of plastic or cardboard that is folded around the paper文件夹;纸夹◆There were two new buff folders on my desk.我桌上有两个崭新的浅褐色文件夹。■binderˈbaɪndə(r) [countable] a hard cover that keeps sheets of paper or magazines together by holding them along one edge活页夹◆Subscribe today and get a free binder with your first issue.现在订阅,第一期能免费得到一个活页夹。◆a ring binder穿孔活页夹NOTE辨析 Folder or binder?Folder has a wider range of meaning than binder. A binder usually holds pieces of paper together as if they were pages in a book. Some kinds of folder can also be called binders, especially if they have a way of holding paper in place. * folder的含义比binder宽泛。binder通常指多张单页装订成册。某些样式的folder也可称作binder,尤其是当单页可固定在一起时。■clipboardˈklɪpbɔːd; NAmEˈklɪpbɔːrd [countable] a small board with a clip at the top for holding papers, used by sb who wants to write while standing or moving around写字夹板;带夹写字板◆Add your name to the list on the clipboard.把你的名字添加到写字板上的名单里。■portfoliopɔːtˈfəʊliəʊ; NAmEpɔːrtˈfoʊlioʊ(pluralportfolios) [countable] a large thin flat case used for carrying and protecting drawings, photographs or documents文件夹;公事包◆Under his arm he carried a large portfolio of drawings.他腋下夹着一大夹子的画。