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As a result, wheat prices elsewhere more than doubled, pulling rice and corn prices up with them.
出自-2016年6月閱讀原文
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With the percentage of people over age 65 expected to nearly double by 2050, it's important to weigh the health benefits of screening against the risks and costs of routine testing.
出自-2012年12月閱讀原文
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Underling all this growth will be the demand for energy, which is expected to double over the next 40 years.
出自-2011年12月閱讀原文
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It projected that the number would double by 2030.
出自-2011年6月閱讀原文
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Instead, topping the list of reasons, about four-in-ten Americans point to a double standard for women seeking to climb to the highest levels of either politics or business, where they have to do more than their male counterparts to prove themselves.
2019年6月四級真題（第二套）閱讀 Section C
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Let's make sure to set a double date during the event.
2018年12月四級真題（第二套）聽力 Section B
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The aircraft is massive as long as a football field and as tall as 6 double decker buses and capable of flying for up to 5 days.
2018年6月四級真題（第二套）聽力 Section A
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One relative bright spot for Macy's during the holiday season was the online channel, where it rang up double-digit increases in sales and a 25% increase in the number of orders it filled.
出自-2017年6月閱讀原文
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But by 2014, the death rate from Alzheimer’s Disease for this age group have more than doubled, increasing from 3.8% to 8.5%, making the progressive brain disease the second leading cause of death for centenarians.
出自-2016年12月聽力原文
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Water Usage: Over the past century, human use of fresh water has increased at more than double the rate of population growth.
出自-2013年12月閱讀原文
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By last year, Wall Street traders, bankers and those who deal in real estate generated 21% of the national income, double their share in the 1950s.
出自-2013年6月閱讀原文
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Globally, urban populations are expected to double in the next 40 years, and an extra 2 billion people will need new places to live, as well as services and ways to move around their cities.
2019年12月六級真題（第二套）閱讀 Section A
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In the US, studies have shown that doubling the size of a road can simply double the traffic, taking us back to the starting point.
2019年12月六級真題（第二套）閱讀 Section A
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Take plenty of breaks, because they offer a double bonus: the time off gives your mind a chance to do some preliminary consolidation and it also gives a memory boost to the learning.
2017年6月六級真題（第一套）聽力 Section C
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ADJ
雙的;成雙的;成對的
You use double to indicate that something includes or is made of two things of the same kind.
例句
...a pair of double doors into the room from the new entrance hall.
從新的門廳通向該房間的一對雙開門
...a lone skier gliding along smooth double tracks.
獨自沿平滑的雙軌雪道滑行的滑雪者
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ADJ
(用于單數名詞前)兩個的，雙重的
You use double before a singular noun to refer to two things of the same type that occur together, or that are connected in some way.
例句
...an extremely nasty double murder...
極端殘忍的雙重謀殺
The government committed a double blunder...
政府重蹈覆轍。
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PREDET
(數量、大小)兩倍的，加倍的
If something is double the amount or size of another thing, it is twice as large.
例句
The offer was to start a new research laboratory at double the salary he was then getting...
所提供的工作機會是創建一個新的研究實驗室，待遇是他當時所得工資的兩倍。
Leeds Prison is reported to have almost double the number of prisoners it's designed to accommodate.
據報道利茲監獄里犯人的數量幾乎已達該監獄設計可容納人數的兩倍了。
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ADJ
加倍的;雙料的;可容納兩個的
You use double to describe something which is twice the normal size or can hold twice the normal quantity of something.
例句
...a double helping of ice cream.
雙份的冰激凌
...a large double garage...
能停放兩輛車的大車庫
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ADJ
(房間)雙人的，供兩人用的
A double room is a room intended for two people, usually a couple, to stay or live in.
例句
...bed and breakfast for ￡180 for two people in a double room.
費用為180英鎊的雙人間，含房費和早餐
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ADJ
（床）雙人的
A double bed is a bed that is wide enough for two people to sleep in.
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ADJ
(酒等飲料)雙份的
You use double to describe a drink that is twice the normal measure.
例句
He was drinking his double whiskey too fast and scowling.
他猛灌著雙份威士忌，臉色陰沉。
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ADJ
(用于單詞拼寫或數字中)兩個的
Double is used when you are spelling a word or telling someone a number to show that a letter or digit is repeated.
例句
Ring four two double two double two if you'd like to speak to our financial adviser.
如果想和我們的財務顧問通話，撥打 422222。
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V-ERG
(使)加倍;（使）增加一倍
When something doubles or when you double it, it becomes twice as great in number, amount, or size.
例句
The number of managers must double to 100 within 3 years...
經理的人數在3年內必須翻倍達到 100人。
The program will double the amount of money available to help pay for child care.
該方案將使可用于幫助支付兒童保育的錢款增加一倍。
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N-COUNT
酷似的人;極相似的人
If you refer to someone as a person's double, you mean that they look exactly like them.
例句
Your mother sees you as her double.
你母親將你看作是她的翻版。
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VERB
兼職;兼任;兼做
If a person or thing doubles as someone or something else, they have a second job or purpose as well as their main one.
例句
...a farmer who doubles as a night nurse...
兼做夜班護士的農夫
Lots of homes in town double as businesses.
鎮里的很多民宅還兼做商用。
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N-UNCOUNT
(網球或羽毛球等的)雙打
In tennis or badminton, when people play doubles, two teams consisting of two players on each team play against each other on the same court.
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PHRASE
迅速;立即;馬上
If you do something at the double or on the double, you do it very quickly or immediately.
例句
Two soldiers entered at the double and saluted...
兩名士兵立即進來敬禮。
Come to my office, please, at the double.
請來我的辦公室，馬上。
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PHRASE
彎腰;弓著身子
When you bend double, you bend the top half of your body downwards a long way.
例句
There wasn't room to stand up and he had to bend double.
空間太小無法站直，他不得不弓著身子。
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PHRASE
彎腰的;弓著身子的
If you are bent double, the top half of your body is bent downwards so that your head is close to your knees.
例句
Pickers are bent double, plucking each flower with lightning speed.
采花人弓著身子飛快地摘著花。
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PHRASE
（眼花等時）看成重影
If you are seeing double, there is something wrong with your eyes, and you can see two images instead of one.
例句
I was dizzy, seeing double.
我一陣眩暈，看到的都是重影。
Noun
1. a base hit on which the batter stops safely at second base;
"he hit a double to deep centerfield"2. a stand-in for movie stars to perform dangerous stunts;
"his first job in Hollywood was as a double for Clark Gable"3. someone who closely resembles a famous person (especially an actor);
"he could be Gingrich's double""she's the very image of her mother"4. a quantity that is twice as great as another;
"36 is the double of 18"5. raising the stakes in a card game by a factor of 2;
"I decided his double was a bluff"Verb
1. increase twofold;
"The population doubled within 50 years"2. hit a two-base hit
3. bend over or curl up, usually with laughter or pain;
"He doubled and vomited violently"4. do double duty; serve two purposes or have two functions;
"She doubles as his wife and secretary"5. bridge: make a demand for (a card or suit)
6. make or do or perform again;
"He could never replicate his brilliant performance of the magic trick"Adjective
1. having more than one decidedly dissimilar aspects or qualities;
"a double (or dual) role for an actor""the office of a clergyman is twofold; public preaching and private influence"- R.W.Emerson"every episode has its double and treble meaning"-Frederick Harrison2. consisting of or involving two parts or components usually in pairs;
"an egg with a double yolk""a double (binary) star""double doors""dual controls for pilot and copilot""duple (or double) time consists of two (or a multiple of two) beats to a measure"3. twice as great or many;
"ate a double portion""the dose is doubled""a twofold increase"4. used of flowers having more than the usual number of petals in crowded or overlapping arrangements;
"double chrysanthemums have many rows of petals and are usually spherical or hemispherical"5. used of homologous chromosomes associated in pairs in synapsis
6. large enough for two;
"a double bed""a double room"7. having two meanings with intent to deceive;
"a sly double meaning""spoke with forked tongue"Adverb
1. downward and forward;
"he was bent double with pain"2. two together;
"some people sleep better double"3. to double the degree;
"she was doubly rewarded""his eyes were double bright"