| 单词 | switch |
| 释义 | switch noun¹ 1small button/lever小按钮；小控制杆adjective | verb + switch | switch + verb | preposition | phrases adjective➤master, power总开关；电源开关◆the master switch is under the stairs.总开关在楼梯下。➤electric, electrical电开关；电气开关▸➤off, on, on-off停机／开机／转换开关◆i couldn't find the off switch on the remote control.我找不到遥控器上的关机按钮。➤dimmer, timer, toggle (especially name) 调光／定时／切换开关◆we fitted dimmer switches in all the bedrooms.我们在所有的卧室里都安装了调光器。➤ignition, light, wall (name) 点火／电灯／墙上开关verb + switch➤flick, flip, hit, press, pull, throw, turn off, turn on轻按开关；按动开关；拉电闸；扳电闸；关上开关；打开开关◆someone threw a switch and the electricity went off.有人扳了电闸，电就断了。switch + verb➤activate sth, control sth, operate sth开关启动⋯／控制⋯／操作⋯◆this switch controls the heating system.这个开关控制供热系统。preposition➤by a switch用开关◆the light operates by a timer switch.这个灯由定时开关控制。➤on a switch连在开关上◆the heater is on a timer switch.加热器连在一个定时开关上。➤switch for⋯的开关◆the switch for the air conditioning空调的开关phrases➤at the flick of a switch轻轻按一下开关◆in the days before electricity was available at the flick of a switch在还不能一按开关就有电用的日子switch noun² 2change that sb makes改变adjective | verb + switch | preposition adjective➤abrupt, sudden突然的转变▸➤big大转变▸➤complete完全的转变▸➤tactical (especially bre) 战术的改变◆the team's manager made a shrewd tactical switch.该队主教练对战术作出了高明的调整。verb + switch➤make作出改变preposition➤switch away from, switch from改变⋯◆there will be no overnight switch away from old voting habits.不会一夜之间就改变旧的选举习惯。◆her switch from full-time to part-time work她从全职到兼职的转变➤switch back to, switch over to, switch to变回；变向◆he's a classical singer who has made the switch over to pop.他是古典歌手，已改唱流行歌曲。➤switch between在⋯之间转换◆the recent switches between direct and indirect taxation近期在直接税和间接税之间的反复➤switch in⋯的转变◆their abrupt switch in allegiance他们在拥戴对象方面的突然转变switch verbadverb | verb + switch | preposition adverb➤easily, readily, simply容易地／轻易地／轻松地转换▸➤suddenly突然转变◆my mind suddenly switched back to my conversation with jeremy.我的思绪突然回到了与杰里米的谈话上。➤quickly快速转换➤automatically自动转换▸➤around, back, back and forth, over, round (especially bre) 改变位置；换回来；来回转换verb + switch➤decide to决定转变◆he decided to switch tactics.他决定改变策略。preposition➤between在⋯之间转换◆the remote control allows you to switch easily between tv channels.遥控器可以使你在不同电视频道之间轻松转换。➤away from, from转离◆he switched his allegiance from the british to the french.他不再效忠英国，转而效忠法国。➤to换成➤with与⋯交换◆we asked them if they would switch places with us.我们问她们是否愿意和我们对换座位。 switch /swɪtʃ/ noun [countable] 1.a small device that you press or move up and down in order to turn a light or piece of electrical equipment on and off （电路的）开关，闸，转换器◆the on-off switch 通断开关2.a change from one thing to another, especially when this is sudden and complete （尤指突然彻底的）改变，转变◆i've decided to make the switch from full-time to part-time work. 我已决定从全职工作改为兼职工作。◆a switch in/of policy 政策的改变◆a policy switch 政策转变 bait-and-switch switch /swɪtʃ/ verb 1. [intransitive, transitive] switch (sth) (over) (from sth) (to sth) | switch (between a and b) to change or make sth change from one thing to another （使）改变，转变，突变◆we're in the process of switching over to a new system of invoicing. 我们正在改用新的发票系统。◆press these two keys to switch between documents on screen. 按这两个键就可以在屏幕上的文件间进行切换。◆the meeting has been switched to next week. 会议已改在下周举行。 2. [transitive] switch sth (with sth) | switch sth (over/around/round) to exchange one thing for another 交换；转换；掉换；对调◆i'll switch desks with you if you want to be near the window. 如果你想坐在靠窗的地方，我和你换一下桌子。 syn swap 3. [intransitive, transitive] switch (sth) (with sb) | switch (sth) (over/around/round) to change jobs, work times, etc. with sb 换班；掉换工作时间◆i managed to switch my shift with someone. 我设法和别人换了班。 syn swap ●switch off/on ●switch sth off/onto turn a light, machine, etc. off/on by pressing a button or switch 关／开（电灯、机器等）◆i forgot to switch off my computer. 我忘了关掉计算机。☞ switch☞ switch switch verbswitch ♦︎ change (sth) over ♦︎ convert ♦︎ swapthese words all mean to change or make sth change from one thing to another.这些词均表示改变、转变。patterns and collocations 句型和搭配◆to switch over / change over / convert from sth to sth◆to switch / change / swap over◆to switch / convert / swap easily■ switch [intransitive, transitive] (rather informal) to change or make sth change from one thing to another改变；转变◆press these two keys to switch between documents on screen.按这两个键，可以切换屏幕上的文件。◆the meeting has been switched to next week.会议改到下周举行。◆when did you switch jobs?你什么时候换了工作？ ➡ see also switch → change noun 2 ■ change over ■ change sth over phrasal verbto change or make sth change from one system or position to another改变（系统或位置）◆the farm has changed over to organic methods.农场已改用有机作业。◆we've changed the farm over to organic production.我们已经将农场改变为有机化生产。 ➡ see also change → change noun 2 note 辨析 switch or change over? switch is more informal than change over and is often used in journalism. change over is more often used with to than from. * switch 不如 change over 正式，常用于新闻中。change over 更常与 to 而非 from 连用◆to change over to nicotine gum / dairy farming / a nuclear policy改用尼古丁口香糖；改为养乳牛；转变为核政策 switch is often used to talk about moving between two opposite positions, or from an old-fashioned system to a new one. * switch 常用于指在两个相反的位置之间移动，或从旧系统向新系统转换◆to switch over from recovery to relapse从康复转变为旧病复发◆to switch over to a metric standard / electronic mail改用公制标准／电子邮件■ convert /kənvɜːt; name kənvɜːrt/ [intransitive] (rather formal) to change a habit or opinion改变（习惯或观点）◆i've converted to organic food.我改吃有机食物了。 ➡ see also conversion → change noun 2 ■ swap (also swop) /swɒp; name swɑːp/ (-pp-) [intransitive] to start doing sb else's job, etc. while they do yours交换（工作）◆i'll drive there and then we'll swap over on the way back.去的时候我开车，回来时咱俩再倒换过来。 ➡ see also swap → exchange noun switch [countable] a small device that you press or move up and down in order to turn a light or piece of electrical equipment on and off（电路的）开关，闸◆a light switch电灯开关◆that was in the days before electricity was available at the flick of a switch.那是在过去，还没有到开关一响就有电的时代。◆which switch do i press to turn it off?我按哪个开关能把它关掉？◆to throw a switch (= to move a large switch) 扳动开关 ➡ see also switch sth off → turn sth off , switch sth on → turn sth on switch [countable] (rather informal, especially journalism尤用于新闻) a change from one thing to another, especially when this is sudden and complete（尤指突然彻底的）改变，转变◆she made the switch from full-time to part-time work when her first child was born.第一个孩子出生后，她就从全职改为兼职工作了。◆he has vehemently opposed the policy switch.他强烈反对改变政策。 ➡ see also switch → switch verb switch [transitive] (rather informal) to put one thing in the place of another, and put the second thing in the place of the first交换；掉换；对调◆the dates of the last two exams have been switched.最后两门考试的日期掉换了。◆do you think she'll notice if i switch my glass with hers?要是把我的杯子跟她的换了，你认为她看得出来吗？◆i see you've switched the furniture around (= changed its position).我看出来你把家具重摆了。switch [intransitive, transitive] (rather informal) to change or make sth change from one thing to another改变；转变◆press these two keys to switch between documents on screen.按这两个键，可以切换屏幕上的文件。◆the meeting has been switched to next week.会议改到下周举行。◆when did you switch jobs?你什么时候换了工作？ ➡ see also switch → change noun 2 switch¹/swɪtʃ ||; swɪtʃ/noun[c] 1. a small button or sth similar that you press up or down in order to turn on electricity （电路）开关: ◇a light switch 电灯开关 2. a sudden change 突然的改变: ◇a switch in policy 政策的骤变 switch²/swɪtʃ ||; swɪtʃ/verb[i,t] 1. switch (sth) (over) (to sth);switch (between a and b) to change or be changed from one thing to another 转变；改变: ◇i'm fed up with my glasses -- i'm thinking of switching over to contact lenses. 我眼镜戴腻了，正考虑改换隐形眼镜。◇press these two keys to switch between documents on screen. 按这两个键可以在屏幕上从一个文件切换到另一个文件。◇the match has been switched from saturday to sunday. 比赛日期已从星期六改到星期日。 2. switch (sth) (with sb/sth);switch (sth) (over/round) to exchange positions, activities, etc 交换（位置、活动等）: ◇this week you can have the car and i'll go on the bus, and next week we'll switch over. 这个星期你用车子，我坐公共汽车，下个星期我们对调。◇someone switched the signs round and everyone went the wrong way. 有人把路标对调，结果大家都走错了路。 switch (sth) off/on to press a switch in order to start/stop electric power （用开关）接通／切断电流；打开／关掉: ◇don't forget to switch off the cooker. 别忘记关掉炉子。 switch (sth) over to change to a different television programme 转换电视频道switchsee ⇨ change/not change 12,20 ⇨ exchange 1 • • •• ⇨ throw a switch☞ switch¹☞ switch² |
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