switch
- v.转换;交换;(使)改变，转变，突变;对调;掉换;调班;临时掉换工作时间
- n.(电路的)开关，闸，转换器;(尤指突然彻底的)改变，转变;(铁路的)转辙器，道岔;（细软）枝条
复数： switches 过去式： switched 现在分词： switching 过去分词： switched 第三人称单数： switches
switchnoun
（电路的）开关，闸，转换器
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
a light switch
电灯开关
an on-off switch
通断开关
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?
我按哪个开关就能把它关了？
to throw a switch (= to move a large switch)
扳动开关
（尤指突然彻底的）改变，转变
a change from one thing to another, especially when this is sudden and complete
a switch of priorities
轻重缓急的改变
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工作改为兼职工作。
a policy switch
政策的转变
（铁路的）转辙器，道岔
the points on a railway/railroad line
（细软）枝条；鞭子
a thin stick that bends easily
a riding switch
马鞭
verb
（使）改变，转变，突变
to change or make sth change from one thing to another
We're in the process of switching over to a new system of invoicing.
我们正在转用新的发票制度。
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之间进行切换。
When did you switch jobs?
你们什么时候调动工作的？
交换；掉换；转换；对调
to exchange one thing for another
The dates of the last two exams have been switched.
最后两门考试的日期掉换了。
I see you've switched the furniture around (= changed its position) .
我看出来你把家具重摆了。
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？
调班；临时掉换工作时间
to do sb else's job for a short time or work during different hours so that they can do your job or work during your usual hours
I can't work next weekend─will you switch with me?
下个周末我不能上班——咱俩调个班好不好？
Have you been able to switch your shift with anyone?
你找着能跟你调班的人了吗？
不再想着；不再注意；失去兴趣
to stop thinking about sth or paying attention to sth
When I hear the word ‘football’ I switch off (= because I am not interested in it) .
我听见“足球”两个字就腻味。
The only time he really switches off (= stops thinking about work, etc.) is when we're on vacation.
只有在我们外出度假的时候，他才真正无牵无挂。
关 / 开（电灯、机器等）
to turn a light, machine, etc. off/on by pressing a button or switch
Please switch the lights off as you leave.
你离开的时候请把灯关了。
How do you switch this thing on?
这东西怎么开？
换台；换频道
to change stations on a radio or television
switch
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1
N-COUNT (电路的)开关，闸，转换器
A switch is a small control for an electrical device which you use to turn the device on or off.Leona put some detergent into the dishwasher, shut the door and pressed the switch.
利昂娜将一些清洁剂放入洗碗机，关上门后按了开始键。
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2
VERB 转换;改变;转变
If you switch to something different, for example to a different system, task, or subject of conversation, you change to it from what you were doing or saying before.Estonia is switching to a market economy...
爱沙尼亚正在向市场经济转轨。
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3
V-ERG 转移(注意力);(注意力)转变
If you switch your attention from one thing to another or if your attention switches, you stop paying attention to the first thing and start paying attention to the second.My mother's interest had switched to my health...
母亲转而关注起我的健康来。
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4
VERB 交换;调换;对调
If you switch two things, you replace one with the other.In half an hour, they'd switched the tags on every cable...
半个小时内，他们就给每根电缆都换了标签。
noun
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1
- the act of changing one thing or position for another
- his switch on abortion cost him the election
- Synonym: switching shift
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2
- a basketball maneuver;two defensive players shift assignments so that each guards the player usually guarded by the other
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3
- a flexible implement used as an instrument of punishment
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4
- control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit
- Synonym: electric switch electrical switch
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5
- railroad track having two movable rails and necessary connections;used to turn a train from one track to another or to store rolling stock
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6
- hairpiece consisting of a tress of false hair;used by women to give shape to a coiffure
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7
- an event in which one thing is substituted for another
- the replacement of lost blood by a transfusion of donor blood
- Synonym: substitution permutation transposition replacement
verb
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1
- reverse (a direction, attitude, or course of action)
- Synonym: interchange tack alternate flip flip-flop
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2
- change over, change around, as to a new order or sequence
- Synonym: switch over exchange
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3
- make a shift in or exchange of;then we switched"
- First Joe le
- Synonym: change over shift
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4
- lay aside, abandon, or leave for another
- switch to a different brand of beer
- She switched psychiatrists
- The car changed lanes
- Synonym: shift change
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5
- flog with or as if with a flexible rod
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6
- cause to go on or to be engaged or set in operation
- switch on the light
- throw the lever
- Synonym: throw flip
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7
- exchange or give (something) in exchange for
- Synonym: trade swap swop
数据来源：WordNet
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When someone brings up a topic when talking but immediately drops it and refuses to switch back to the dropped topic , leaving the other hanging in the middle of a conversation .
当某个人谈话间提到某个话题而忽然又转换话题避而不谈刚才的话题，把对方的胃口吊在那里。
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Can they switch back and forth between the two systems ?
它们能在两个系统之间转换吗？
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The computer system was switched off in error .
计算机系统被不慎关闭。
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People get really switched on by this music .
这首乐曲确实令人激情勃发。
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A single red LED shows that the power is switched on .
单支红色发光二极管表示电源已接通。
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The heating is on a time switch .
暖气靠定时开关自动供热。
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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之间进行切换。
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I can 't work next weekend ─ will you switch with me ?
下个周末我不能上班——咱俩调个班好不好？
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Please make sure all mobile phones are switched off during the performance .
请确保演出时关上所有手机。
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Have you been able to switch your shift with anyone ?
你找着能跟你调班的人了吗？
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We 're in the process of switching over to a new system of invoicing .
我们正在转用新的发票制度。
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I had to feel about in the dark for the light switch .
我得在黑暗中摸索寻找电灯开关。
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Can you reach the light switch from where you 're sitting ?
从你坐的地方够得着灯的开关吗？
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The dates of the last two exams have been switched .
最后两门考试的日期掉换了。
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Which switch do I press to turn it off ?
我按哪个开关就能把它关了？
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Switch the camera into the automatic mode .
将照相机调到自动拍摄状态。
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When I hear the word ' football ' I switch off .
我听见“足球”两个字就腻味。
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The switches close the contacts and complete the circuit .
这些开关可接通形成闭合电路。
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How do you switch this thing on ?
这东西怎么开？
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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？
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All this information is available at the flick of a switch .
这所有的信息只需按一下开关便可到手。
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They 've switched off the power .
他们关掉了电源。
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Do you remember switching the lights off before we came out ?
你记得我们出来之前关灯了吗？
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Please switch the lights off as you leave .
你离开的时候请把灯关了。
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Passengers must not smoke until the signs have been switched off .
指示灯未熄灭之前乘客不许抽烟。
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This switch controls the number of rotations per minute .
这个开关控制着每分钟的转数。
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My phone seems to switch itself off randomly .
我的手机好像随时自动关机。
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The main thing to remember is to switch off the burglar alarm .
最要紧的是记住关掉防盗报警器的开关。
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His phone must be switched off .
他的电话一定是关机了。
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I exited the database and switched off the computer .
我退出数据库后关掉了计算机。
通常指互相交换同类东西。
Mary exchanged coats with Lucy.
玛丽同露西交换了外套。
Both sides exchanged their opinions on the issue at the meeting.
在会上，双方就此问题交换了意见。
侧重指交流思想、信息或交换位置等。
As a manager, he often interchanges ideas with his workers.
作为经理，他经常与员工交换意见。
The two friends interchange letters each week.
这两个朋友每周都有信件往来。
多用于口语，常可与 exchange 换用，但侧重于调换之意。
Our glasses have been switched/exchanged - this is mine.
咱俩的玻璃杯对调了——这个是我的。
Will you switch/exchange your horse for my car?
你愿意用你的马换我的汽车吗？
尤指买卖货物，也可表示交换物品。
He usually trades by phone or online.
他经常通过电话或网络进行交易。
She traded her books for his CDs.
她用书换他的光盘。
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