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。