(a) [I, Ip] become open; be opened 开; 打开; 张开: Does the window open inwards or outwards? 这窗户是朝里开的还是朝外开的? (b) [Tn, Tn.pr] cause (sth) to be open; unfasten 打开（某物）; 使松开: Open your coat. 你宽宽大衣吧. * open a box, parcel, envelope, etc 打开箱子﹑ 包裹﹑ 信封等 * She opened the door for me to come in/to let me in. 她开门让我进去. * open the window a crack/fraction/bit/little, ie open it slightly 把窗户稍稍打开. 
[Tn, Tn.pr] cut or make a passage through or opening in (sth) 穿过（某物）开辟通道; 在（某物）上开孔: open a mine, well, tunnel, etc 开矿﹑ 打井﹑ 凿隧道 * open a new road through a forest 开辟一条穿过森林的新路. 
[I, Ipr, Tn, Tn.p] ~ (sth) (out) (cause sth to) spread out; unfold （使某物）展开, 铺开, 张开: The flowers are opening (out). 花都开了. * open a book, a newspaper, etc 打开书﹑ 报等 * open (out) a map on the table 在桌上摊开地图 * Open your hand I know you're hiding something. 你把手张开--我知道你手里藏着东西呢. 
(a) [Tn] start (sth) 开始（某事物）: open an account, eg at a bank 开户头 * open a meeting, a debate, etc 开会﹑ 开辩论会. (b) [I, Tn] (cause sth to) be ready for business, admit users or visitors, etc （使某事物）开张, 营业, 开放: Another supermarket opened last week. 上星期又有一家超级市场开张了. * Banks don't open on Sundays. 银行星期日不办公. * open a business, new shop, hospital, etc 开公司﹑ 新商店﹑ 医院等. (c) [Tn] ceremonially declare (a building, etc) to be open 在仪式上宣布（某建筑物等）开始使用: open a garden fete 在仪式上宣布游园义卖会开始 * The Queen opens Parliament. 女王宣布议会开会. 
(idm 习语) the heavens opened => heaven. open one's/sb's eyes (to sth) make one/sb realize sth that surprises one/him 使自己[某人]了解到意想不到的事物; 长见识: Foreign travel opened his eyes to poverty for the first time. 他一到外国才初次见识到什麽是贫穷. open `fire (at/on sb/sth) start shooting 开火: He ordered his men to open fire. 他命令士兵开火. open the floodgates (of sth) release a great force of emotion, destruction, rebellion, etc previously held under control 打开闸门（释放出感情﹑ 破坏﹑ 反叛等的能量）. open one's `heart/`mind to sb express or discuss one's feelings or ideas freely 开诚相见; 倾心吐胆. 
(phr v) open into/onto sth give access to sth; lead to sth; allow one to reach sth 通向某处: This door opens onto the garden. 这道门通往花园. * The two rooms open into one another. 这两个房间有门相通. open out (a) become wider; become visible 打开; 张开; 展现; 显示: The road opened out into a dual carriageway. 这条路已扩展成了复式车行道. * The view opened out in front of us as the fog cleared. 雾一消散景色就呈现在我们眼前了. (b) develop (in personality, etc) （个性等）形成, 发展: She opened out a lot while she was staying with us. 她与我们相处期间个性已强多了. open up (infml 口) talk freely and openly 畅谈: After a few drinks he began to open up a bit. 他喝了几杯酒话就多起来了. open (sth) up; (a) (cause sth to) open （使某物）打开, 张开: Coughing like that might open up your wound. 你那样咳嗽会把伤口震开的. (b) (cause sth to) be available for development, production, etc （使某物）供开发, 生产: New mines are opening up. 新矿正在开发. * open up undeveloped land, new territory, etc 开发未开发的地区等 * His stories opened up new worlds of the imagination. 他的小说开拓了想像力新天地. (c) (cause sth to) beginbusiness （使某事物）开业, 开张: open up a new restaurant开一家新餐厅 * He never opens up shop on a Sunday. 星期日他的商店从不营业. open sth up unwrap, undo sth; unlock (a room, door, etc) 解开﹑ 拆开某物; 打开（房间﹑ 门等）: open up a package 打开包裹 * open up the boot of a car 开开汽车的行李箱 * open up an unused room 打开未用过的房间 * `Open up!' (ie `Unlock the door!') shouted the police officer. ‘开门!’警察喊道. open (sth) with sth start with sth 以某事物开始: The story opens with a murder. 这故事以一件谋杀案开始. * He opened the conference with a speech. 会议首先由他致词.> opener / 5EUpnE(r); `opEnL/ n (usu in compounds 通常用以构成复合词)
1 person or (esp) thing that opens 开启的人或（尤指）工具: a `tin-opener * a `bottle-opener.
2 (idm 习语) for `openers (US infml 口) for a start; as a beginning 作为开始: For openers we'll get rid of this old furniture. 我们首先要把这些旧家具搬走.