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TOEFL IELTS BNC: 1952 COCA: 2604

switch

Word family 
switch1 /swɪtʃ/ ●●● S2 W3 verb
1  [intransitiveI, transitiveT]CHANGE FROM ONE THING TO ANOTHER to change from doing or using one thing to doing or using another 轉換，轉變，改變
switch to
She worked as a librarian before switching to journalism.
她在轉行從事新聞工作前是圖書館管理員。
switch from something to something
Duval could switch easily from French to English.
杜瓦爾可以在法語和英語之間自如切換。
switch between something and something
He switches between TV and theatre work.
他的工作在電視業和戲劇界之間不斷變換。
The terrorists will switch tactics.
恐怖分子會改變戰術。
switch sides/allegiance (=start supporting a different person, party etc) 轉換立場/改變擁戴對象
He switched sides just days before the election.
就在競選的前幾天他改變了立場。
switch attention/focus/emphasis
We want to switch focus away from criticism.
我們想把重點從批評上轉移開。
2  [transitiveT]REPLACE to replace one thing with another, or exchange things 交換；調換；轉換 SYN change
switch something for something
Tim may switch his BMW for something else.
蒂姆可能會把他的寶馬車換成别的什麽車。
switch something from something to something
We’ve switched the meeting from Tuesday to Thursday.
我們把會議從周二改到了周四。
switch something around
It’s not easy to switch clerical workers around.
想調換辦公室工作人員並不容易。
3  [intransitiveI, transitiveT] American EnglishAmE if you switch with someone who does the same job as you, you exchange your working times with theirs for a short time 〔與同事〕調換上班時間，調（班） SYN swap
switch with
Tom said he’d switch with me on Saturday.
湯姆說他周六會和我調班。
He asked if we could switch shifts.
他問我們是否可以調班。
4  [transitiveT always + adverbadv/prepositionprep] to change the way a machine operates, using a switch 〔用開關〕改變〔機器的運轉〕，轉換
switch something to something
Switch the freezer to ‘defrost’.
把冷凍櫃調到“除霜”模式。
5 switch off phrasal verbphr v 
a) SWITCH ON OR OFFto turn off a machine, light, radio etc using a switch 〔用開關〕關掉，關上
switch something ↔ off
The burglar alarm was switched off.
防盜警報器被關上了。
Don’t forget to switch off before you go.
離開之前别忘記關掉開關。
b) informalATTENTION# to stop listening to someone 不再聽；不加理睬[注意]
He just switches off and ignores me.
他就是不聽，不理我。
c) to relax for a short time 〔短暫地〕放鬆
Switch off by listening to music.
聽聽音樂放鬆一下。
Examples from the Corpus
switch off• In the end I got sick of the conversation and switched off.• It's OK - I switched the TV off before I went out.• It's difficult for teachers to switch off when they go home at night.• Always switch off your computer when you've finished.
6 switch on phrasal verbphr v SWITCH ON OR OFFto turn on a machine, light, radio etc using a switch 〔用開關〕開，打開
switch something ↔ on
He switched the torch on.
他打開了手電筒。
5When a tape is put in the VCR, it switches on automatically .
錄像帶放進錄像機後，它會自動播放。
Examples from the Corpus
switch on• Do you mind if I switch the light on?• Exhaust fumes come into the car when I switch on the air conditioner.• I switched on the radio to listen to the news.• Will you switch on the television?
7 switch over phrasal verbphr v 
a) to change from one method, product etc to another 改變，轉變〔方法、産品等〕
to
We’ve switched over to telephone banking.
我們已經改用電話銀行服務了。
b) to change the television channel you are watching or the radio station you are listening to 轉換〔電視頻道或電台〕
to
Switch over to BBC 2.
換到英國廣播公司二台。
Examples from the Corpus
switch to• To see what you've taken, switch over to play and browse through your images.
switch to• To see what you've taken, switch over to play and browse through your images.
n COLLOCATIONS
nouns
switch sides (=start supporting someone or something else)
Three senators switched sides and voted for the ban.
switch (your) allegiance (=start supporting someone else)
Most of his supporters had switched their allegiance to his rival.
switch channels (=start watching a different TV channel)
Rod switched channels with the remote control.
switch tactics
Sensing that his victim was going to escape him, he switched tactics.
switch your attention/focus to something
Laura wasn't interested so he switched his attention to Tessa.
switch brands
46% of consumers surveyed were likely to switch brands to support companies they saw as socially responsible,
the emphasis switches/is switched to something
The emphasis has switched to defence.
Examples from the Corpus
switch• Solbourne's product allows developers to create graphical user interfaces that dynamically switch between Motif and Open Look.• He switched easily and fluently from speaking English to French to German.• Then he switched his own torch off.• He went inside to her living room, switched off the lights on the bushes, and locked the front door.• We switched seats halfway through the show.• He parked close to where the land sloped downwards to a narrow pebble beach, and switched the engine off.• He was accused of switching the price labels on goods.• It was still switched through to the secretary's office, and it took an infuriatingly long time to get a line.• Would Parcells select either one, make Willie McGinest a defensive end and switch to a 4-3 defense?• She switched to forward when she joined the Tiburon Tornadoes at 14.• As a result, most of these countries have switched to orthodox fiscal and monetary policies to curb inflation.• It took a long time for Americans to switch to smaller cars.• I used to play golf but I switched to tennis to get more exercise.• Professor Rigby's talk may be switched to the main hall.• We must have switched umbrellas by mistake.
switch attention/focus/emphasis• I will switch emphasis from attending Branch meetings to meeting on a one to one basis with these people in each branch.
switch something from something to something• He switched over from manual to remote operation, putting Betty now under control of Hal.
switch something to something• Switch the oven to "broil."
Related topics: Daily life
switch2 ●●● S3 noun [countableC]
1  on/off 開/關SWITCH ON OR OFF a piece of equipment that starts or stops the flow of electricity to a machine, light etc when you push it 〔機器、電燈等的〕開關；電閘
Where’s the light switch?
電燈開關在哪兒？
an on–off switch
開關鍵
press/flick/throw etc a switch
Tom flicked the switch, but nothing happened.
湯姆按了下開關，但什麽反應也沒有。
She claims she is willing to throw the switch of the electric chair.
她表示她願意按下電椅開關。
at the flick of a switch (=very quickly and easily, by pressing a switch) 按一下按鈕就會…
Petrol can be chosen at the flick of a switch.
只要按一下按鈕就可以選擇汽油。
→5 see picture at 見圖 plug1
2  change 改變CHANGE FROM ONE THING TO ANOTHER [usually singular] a complete change from one thing to another 〔徹底的〕改變，轉變
an important policy switch
一項重要的政策改變
switch from/to
the switch from agriculture to dairy production
從農業向乳品生産的轉變
switch in
a switch in emphasis
重點的轉移
More shoppers are making the switch to organic food.
更多顧客開始改買有機食品。
that’s a switch American EnglishAmE spoken informal (=used to say that someone’s behaviour is different from usual) 那真不尋常
‘Ed’s the only one who’s not eating.’ ‘That’s a switch!’
“只有埃德沒在吃。”“這真少見！”
3. railway 鐵路 American EnglishAmE a piece of railway track that can be moved to allow a train to cross over from one track to another 〔鐵路的〕轉轍器，道岔
4. stick 枝條D old-fashioned a thin stick that bends easily 細軟的枝條
n COLLOCATIONS
verbs
press a switch
He pressed a switch on the wall and the door opened.
flick/flip a switch (=move it so something starts or stops)
You start the fan by just flipping this switch.
throw a switch (=move it so something starts or stops, especially something big)
Could a nuclear war really be started by someone just throwing a switch?
ADJECTIVES/NOUN + switch
a light switch
He reached for the light switch.
a dimmer switch (=a switch that can change the brightness of a light)
an on-off switch
I couldn’t find the on-off switch.
the power switch
They have reverted to placing the mains power switch at the back of the unit.
the mains switch (=one that controls the supply of electricity to a house)
The mains switch is located inside a cupboard near the front door.
phrases
at the flick/touch of a switch (=very quickly and easily, with a switch)
The advantages of having electricity available at the flick of a switch are obvious.
Examples from the Corpus
switch• For example, if the price of metal rises too high there may be a switch to plastic.• Then, he flicked a switch and stood well back.• There is a board in the reception office, cashier's office and housekeeper's office with a switch in every bedroom.• A switch to complete different new foods may cause stomach upsets.• Jim walked over to the overhead, placed a transparency on it, and flicked on the lamp switch.• a light switch• Additional features include an IrDA interface for wireless connection and a locking switch for printer transport.• Where's the power switch?• His sudden switches of mood are difficult to deal with.• In a surprise switch, he heads into soft-edged landscape in a fifth work.• All other flying leads for the switches and indicators are at low voltage and these can be soldered directly to the p.c.b.• The switch from political activity to family life was hard to handle.• The switch to a free market economy will not be easy.
at the flick of a switch• These days about 15 percent of our energy is obtained at the flick of a switch.
making the switch• Even previously committed invertebrate labs like Alkon's Hermissenda group were making the switch.
Switchn trademark
n1.in the past, a type of system used for paying for goods and services in the UK, by which customers used a type of plastic card called a debit card, and money was immediately taken out of their bank account. Since 2002, Switch has been replaced by Maestro, the Mastercard brand of debit card.
Origin switch2
(1500-1600) Perhaps from Middle Dutch swijch “small thin stick”

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