double

• n. 两倍；双精度型
• adj. 双重的；两倍的
• vi. 加倍，加倍努力；快步走
• vt. 使加倍
• adv. 双重地；两倍地；弓身地
• n. (Double)人名；(法)杜布勒；(英)道布尔

来自拉丁语duplus, 双倍，du-, 二，词源同two, -pl, 倍，词源同ply.

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"

double

double: [13] Double comes via Old French doble or duble from Latin duplus (direct source of English duple [16]). This was a compound adjective formed from duo ‘two’ and an Indo- European element *pl- which denoted ‘folding’ (it is present also in English fold and ply). The same semantic elements went to make up English twofold, and indeed duplex (see DUPLICATE), and also Greek diplous (source of English diploma and diplomat).

The underlying meaning of doublet ‘close-fitting jacket’ [14] (borrowed from French doublet, a derivative of double) is ‘something folded’, while doubloon [17], borrowed via French doublon from Spanish doblón (a derivative of doble ‘double’) was originally a gold coin worth ‘double’ a pistole.
=> diploma, diplomat, dub, duplicate, fold, ply

double (adj.)

early 13c., from Old French doble (10c.) "double, two-fold; two-faced, deceitful," from Latin duplus "twofold, twich as much" from duo "two" (see two) + -plus "more" (see -plus). Double standard attested by 1951. Military double time (1833) originally was 130 steps per minute.

double (v.)

late 13c., "make double," from Old French dobler, from Latin duplare, from duplus (see double (adj.)). Meaning "to work as, in addition to one's regular job" is c. 1920, circus slang, from performers who also played in the band. Related: Doubled; doubling. To double up bodily is from 1814.

A blow on the stomach "doubles up" the boxer, and occasions that gasping and crowing which sufficiently indicate the cause of the injury .... [Donald Walker, "Defensive Exercises," 1840]

double (n.)

mid-14c., "amount twice as great," also "duplicate copy," from double (adj.).

As a result, wheat prices elsewhere more than doubled, pulling rice and corn prices up with them.

出自-2016年6月阅读原文

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月阅读原文

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月阅读原文

It projected that the number would double by 2030.

出自-2011年6月阅读原文

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月四级真题（第二套）阅读 Section C

Let's make sure to set a double date during the event.

2018年12月四级真题（第二套）听力 Section B

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月四级真题（第二套）听力 Section A

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月阅读原文

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月听力原文

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月阅读原文

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月阅读原文

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月六级真题（第二套）阅读 Section A

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月六级真题（第二套）阅读 Section A

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月六级真题（第一套）听力 Section C

According to the analysis of Babbitt's team, old desktop monitors and box TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions more than doubling during the 1992 to 2007 window.

2018年高考英语全国卷I 阅读理解 阅读D 原文

And doubling a buffet's price led customers to say that its pizza was 11 percent tastier.

2018年高考英语江苏卷 阅读理解 阅读B 原文

From 2004 to 2013, agricultural land values doubled, and they continue to rise in many regions.

2018年高考英语江苏卷 阅读理解 阅读C 原文

I'd like to book a room with a double bed.

2016年高考英语北京卷 听力 原文

Ok, single room or double room?

2015年高考英语湖北卷 听力 原文

We have only two double rooms available.

2015年高考英语湖北卷 听力 原文

When you have found shoes that seem right, walk in them for a few days to double-check the fit.

2015年高考英语全国卷2 阅读理解 七选五 原文

Losing a job is hurting: you don’t skip down to the jobcentre with a song in your heart, delighted at the prospect of doubling your income from the generous state.

出自-2014年考研阅读原文

Rather officials must avoid double standards, or different types of access for average people and the wealthy.

出自-2017年考研阅读原文

At its peak in 2007, it was worth some $65 billion, reckons Clare McAndrew, founder of Arts Economics, a research firm—double the figure five years earlier.

2010年考研真题（英语二）阅读理解 Section Ⅱ

In 2015, the US Forest Service for the first time spent more than half of its $5.5 billion annual budget fighting fires——nearly double the percentage it spent on such efforts 20 years ago.

2017年考研真题（英语二）阅读理解 Section Ⅱ

One Gallup poll found that 20 percent of Americans who have been unemployed for at least a year report having depression, double the rate for working Americans.

2017年考研真题（英语二）完形填空 Section Ⅰ

The state's proposed Forest Carbon Plan aims to double efforts to thin out young trees and clear brush in parts of the forest.

2019年考研真题（英语二）阅读理解 Section Ⅱ

a double helping

一客双份的食物

牛津词典

two double whiskies

两杯双份的威士忌酒

牛津词典

double doors

双扇门

牛津词典

a double-page advertisement

双页广告

牛津词典

‘Otter ’ is spelt with a double t.

otter一词中有两个t。

牛津词典

My extension is two four double 0 (2400).

我的分机号是2400。

牛津词典

a double bed/room

双人床 / 房间

牛津词典

a double meaning/purpose/aim

双重意义 / 目的 / 目标

牛津词典

It has the double advantage of being both easy and cheap.

它具有既方便又便宜的双重优点。

牛津词典

Lots of homes in town double as businesses.

镇里的很多民宅还兼做商用。

柯林斯高阶英语词典

Two soldiers entered at the double and saluted...

两名士兵立即进来敬礼。

柯林斯高阶英语词典

Come to my office, please, at the double.

请来我的办公室，马上。

柯林斯高阶英语词典

There wasn't room to stand up and he had to bend double.

空间太小无法站直，他不得不弓着身子。

柯林斯高阶英语词典

Pickers are bent double, plucking each flower with lightning speed.

采花人弓着身子飞快地摘着花。

柯林斯高阶英语词典

I was dizzy, seeing double.

我一阵眩晕，看到的都是重影。

柯林斯高阶英语词典

...a farmer who doubles as a night nurse...

兼做夜班护士的农夫

柯林斯高阶英语词典

Your mother sees you as her double.

你母亲将你看作是她的翻版。

柯林斯高阶英语词典

He was drinking his double whiskey too fast and scowling.

他猛灌着双份威士忌，脸色阴沉。

柯林斯高阶英语词典

Ring four two double two double two if you'd like to speak to our financial adviser.

如果想和我们的财务顾问通话，拨打 422222。

柯林斯高阶英语词典

The number of managers must double to 100 within 3 years...

经理的人数在3年内必须翻倍达到 100人。

柯林斯高阶英语词典

The program will double the amount of money available to help pay for child care.

该方案将使可用于帮助支付儿童保育的钱款增加一倍。

柯林斯高阶英语词典

...a double helping of ice cream.

双份的冰激凌

柯林斯高阶英语词典

...a large double garage...

能停放两辆车的大车库

柯林斯高阶英语词典

...bed and breakfast for £180 for two people in a double room.

费用为180英镑的双人间，含房费和早餐

柯林斯高阶英语词典

Leeds Prison is reported to have almost double the number of prisoners it's designed to accommodate.

据报道利兹监狱里犯人的数量几乎已达该监狱设计可容纳人数的两倍了。

柯林斯高阶英语词典

...a pair of double doors into the room from the new entrance hall.

从新的门厅通向该房间的一对双开门

柯林斯高阶英语词典

...a lone skier gliding along smooth double tracks.

独自沿平滑的双轨雪道滑行的滑雪者

柯林斯高阶英语词典

...an extremely nasty double murder...

极端残忍的双重谋杀

柯林斯高阶英语词典

The government committed a double blunder...

政府重蹈覆辙。

柯林斯高阶英语词典

The offer was to start a new research laboratory at double the salary he was then getting...

所提供的工作机会是创建一个新的研究实验室，待遇是他当时所得工资的两倍。

柯林斯高阶英语词典