switch

n.开关；转换，转换器；软鞭子；[信]接线台

vt.& vi.转变，改变；转换；关闭电流；鞭打

vt.转换；挥动（棍棒、鞭子等）；迅速转动；鞭打

vi.交换；调换

noun

1. （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
   1. a light switch
      电灯开关
   2. an on-off switch
      通断开关
   3. 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。
   4. Which switch do I press to turn it off?
      我按哪个开关就能把它关了？
   5. to throw a switch (= to move a large switch)
      扳动开关
2. （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
   1. a switch of priorities
      轻重缓急的改变
   2. 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。
   3. a policy switch
      政策的转变
3. （铁路的）转辙器，道岔
   the points on a railway/railroad line
4. （细软）枝条；鞭子
   a thin stick that bends easily
   1. a riding switch
      马鞭

verb

1. （使）改变，转变，突变
   to change or make sth change from one thing to another
   1. 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。
   2. 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。
   3. When did you switch jobs?
      你们什么时候调动工作的？
2. 交换；掉换；转换；对调
   to exchange one thing for another
   1. The dates of the last two exams have been switched.
      最后两门考试的日期掉换了。
   2. I see you've switched the furniture around (= changed its position) .
      我看出来你把家具重摆了。
   3. 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？
3. 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
   1. 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？
   2. Have you been able to switch your shift with anyone?
      你找着能跟你调班的人了吗？

过去式:switched 过去分词:switched 现在分词:switching 名词复数形式:switches 第三人称单数:switches

switch 开关，闸，转换器，转换，交换

最终来自 PIE*swei,弯，转，摆动，词源同 swing,swivel.引申诸相关词义。

1. The intercom buzzed and he pressed down the appropriate switch
   对讲机发出嗡嗡声，他按下了相应的开关。
2. Switch to paying your mortgage by direct debit.
   改成用直接借记方式偿还抵押贷款吧。
3. He flipped the timer switch.
   他按了一下定时开关。
4. He snatched up the receiver and his free hand groped for the switch on the bedside lamp
   他一只手抓起电话听筒，另一只手去摸床头灯的开关。
5. I made a switch from butter to olive oil for much of my cooking.
   我做饭的时候已经不怎么使用黄油，而是换成了橄榄油。
6. Buy a dimmer switch and keep the light on low, or switch it off altogether
   买一个调光开关，把灯光调暗，或者干脆把灯关掉。
7. Milk rounds are threatened as customers switch to buying from supermarkets.
   随着顾客转而从超市购买牛奶，送牛奶的生意受到了威胁。
8. It was musical chairs. Creative people would switch jobs just to get more money.
   像抢椅子游戏，有能力的人为挣更多的钱而不断跳槽。
9. The overdrive switch was on the steering column.
   超速挡的开关在转向杆上。
10. Every time I switch on the TV, there's football. It's overkill
    我每次打开电视都是足球节目，真是受不了。
11. Chinese officials hope that trade will pick up when the two countries switch to hard currency
    中方官员希望两国在转向使用硬通货后，贸易会有起色。
12. Then her thoughts would switch to the present.
    然后，她的思绪会转到现在。
13. The switch works by passing a pulse of current between the tip and the surface.
    那个开关通过在末梢和表面之间传输电流脉冲工作。
14. Many people switch on the television simply to stave off boredom over the Christmas break
    很多人打开电视仅仅是为了打发圣诞节休息期间的无聊时光而已。
15. Next week they will swap places and will repeat the switch weekly
    下周他们将交换座位，并且以后每周换一次。
16. 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。
17. Estonia is switching to a market economy
    爱沙尼亚正在向市场经济转轨。
18. The law would encourage companies to switch from coal to cleaner fuels
    该法律将鼓励企业转而使用比煤更加清洁的能源。
19. The encouragement of a friend spurred Chris into switching jobs.
    在一位朋友的鼓励下，克理斯换了工作。
20. My mother's interest had switched to my health
    母亲转而关注起我的健康来。
21. As the era wore on, she switched her attention to films.
    随着这个时代慢慢过去，她把目光投向了电影业。
22. 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。
23. The ballot boxes have been switched.
    投票箱被人调换了。
24. Thankfully, I've learned to switch off and let it go over my head
    谢天谢地，我已经学会了释然，随它去吧。
25. You may find you've got so many things to think about that it's difficult to switch off.
    你会发觉需要考虑的事情太多了，想不操心都难。
26. He pointed the light at his feet and tried to switch it on.
    他把灯对准自己的脚，试图打开它。
27. I just happened to switch over although I haven't been watching the Olympics
    我并没有一直在看奥运会，当时只是恰好换到这个频道。
28. Let's switch over to Channel 4.
    换到4频道吧。
29. There was something wrong with the switch and I got a shock.
    电门有毛病，电了我一下。
30. Turn the light off as you go out.; Please switch off the lights when you leave.
    出门时请随手关灯。