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单词 switch
释义 switch
[swɪtʃ] noun
DEVICE 装置
 IMPROVER  countable
■a small device, usually pushed up or down with your finger, that controls and turns on or off an electric current 开关
a light switch电灯开关
Can you flip the switch?你能打开那个开关吗?
switches [plural] US for
points (RAILWAY) 改变
[swɪtʃ] noun
CHANGE 改变
countable
■a sudden or complete change, especially of one person or thing for another (尤指由此至彼地)突然改变,彻底改变;调换;转换
[swɪtʃ] verb transitive intransitive usually + adverb or preposition
DEVICE 装置
 IMPROVER 
■to use a switch to change a device from one state or type of operation to another (用开关)打开,关闭,转换
switch the TV off/on关/开电视
[swɪtʃ] verb transitive intransitive usually + adverb or preposition
CHANGE 改变
 IMPROVER 
■to change suddenly or completely, especially from one thing to another, or to exchange by replacing one person or thing with another (尤指由此至彼地)突然改变,彻底改变;调换;转换
She started studying English at college, but switched to Business Studies in her second year.她刚上大学时是学英语,但二年级的时候改学商了。
In 1971, Britain switched over (= changed completely) to a decimal currency.1971年,英国改用十进制货币。
After the bank robbery, the gang switched cars (= left one car and got into another).抢劫银行后,劫匪马上换了车。
[swɪtʃ] verb transitive intransitive usually + adverb or preposition
  Phrasal Verbs   switch off informal
 ADVANCED 
■to stop giving your attention to someone or something 不再关注,不再理睬
If he gets bored, he just switches off and looks out the window.他觉得无聊时,就心不在焉地朝窗外看。
[swɪtʃ] verb transitive intransitive usually + adverb or preposition
  Phrasal Verbs   switch sth on usually disapproving
■If someone switches on a particular emotion or behaviour, they suddenly start to feel or behave in that way, but usually not sincerely (通常不是发自内心地)突然变得,突然装出
When a customer walks in, she switches on the charm.一有顾客走进来,她就马上装出亲切可人的样子。
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