double + sth
double 作为及物动词，后接宾语，表示使某物增加一倍。
The company doubled its profits this year.
这家公司今年利润翻了一番。
使加倍；翻一番；是…的两倍
对折；折叠；兼作；兼用；另有用途；复制；完全重复；使成双；配对；连接；作替角；顶替（演员）
To make or become twice as much; to multiply by two or be equal to twice the amount.
乘以二
To multiply by two.
翻倍
To increase by 100%, to become twice as large in size.
是...的两倍
To be the double of; to exceed by twofold; to contain or be worth twice as much as.
对折
To fold over so as to make two folds.
握紧拳头
To clench (a fist).
二垒安打
To get a two-base hit.
连接
To join or couple.
复制
To repeat exactly; copy.
兼任
To serve a second role or have a second purpose.
替代
To act as substitute for (another theatrical performer in a certain role, etc).
扮演两个角色
To play (both one part and another, in the same play, etc).
急转弯,沿曲折路线行进。
To turn sharply, following a winding course.
绕(岬角或其他地点)航行。
To sail around (a headland or other point).
(同度或八度)重复(一个声部)。
To duplicate (a part) either in unison or at the octave above or below it.
能演奏(另一乐器)。
To be capable of performing (upon an additional instrument).
(桥牌中)加倍。
To make a call that will double certain scoring points if the preceding bid becomes the contract.
(在二十一点中)加倍下注。
To double down.
(台球)使(球)碰岸反弹入袋。
To cause (a ball) to rebound from a cushion before entering the pocket.
以双倍速度行进。
To go or march at twice the normal speed.
使力量或效果加倍。
To multiply the strength or effect of by two.
(军队)使(队列)并排成一路。
To unite, as ranks or files, so as to form one from each two.
充当双重间谍。
To operate as a double agent.
一般现在时
He doubles his income every year.
他每年收入翻倍。
一般过去时
She doubled the recipe last night.
她昨晚把食谱的量加倍了。
现在进行时
The company is doubling its workforce this quarter.
这家公司本季度正在将员工人数翻倍。
规则动词，过去式加-ed，现在分词去e加ing。
He doubles his income every year by working overtime.
他每年通过加班使收入加倍。
用法提示：动词double在这里表示‘使加倍’，用于一般现在时，主语是he，宾语是income。
The company doubled its profits last quarter.
这家公司上个季度使利润翻了一番。
用法提示：过去式doubled表示‘使加倍’，描述过去完成的动作。
She is doubling the recipe to feed more guests.
她正在把食谱的量加倍，以便招待更多客人。
用法提示：现在分词doubling与be动词连用，表示正在进行的‘使加倍’动作。
double 作为及物动词，后接宾语，表示使某物增加一倍。
The company doubled its profits this year.
这家公司今年利润翻了一番。
double 作为不及物动词，主语是数量或事物，表示自身加倍。
The population has doubled in the last decade.
人口在过去十年中翻了一番。
grammar · medium
易错句子The population double in ten years.
正确表达The population doubles in ten years.
英语中，主语是第三人称单数时，谓语动词需加-s；而汉语动词没有单复数变化，学习者容易遗漏。
grammar · medium
易错句子She doubled her income twice in one year.
正确表达She doubled her income in one year.
double本身表示“使加倍”，即变为两倍，再用twice造成语义重复且逻辑矛盾，应删去twice。
double强调数量翻倍，duplicate强调制作完全相同的副本。
double特指增加到两倍，multiply可指乘以任何倍数。
double特指增加到两倍，increase可指任何幅度的增加。
规模/尺寸翻倍
The company has doubled in size since 2010.
2010年以来，这家公司的规模翻了一倍。
使数量翻番；把量加倍
If you double the amount of sugar, it will be too sweet.
如果你把糖的用量加倍，就会太甜。
兼作；兼用
The spare room doubles as an office.
这间备用房间兼作办公室。
弯腰；弓身（常因大笑或疼痛）
He doubled over with laughter at the joke.
他听到那个笑话笑得直不起腰。
代替；顶替
A stuntman doubled for the actor in the dangerous scene.
一位特技演员在那个危险场景中代替了那位演员。
原路折返；掉头返回
We doubled back to pick up the keys we had forgotten.
我们原路折返，去拿忘记带的钥匙。
与 double 同属倍数变化，表示乘以三。
double 常与百分比搭配，如增加100%即翻倍。
翻倍常用于描述增长幅度，例如利润增长一倍。
double 可表达为 factor of two，即二倍因子。
翻倍表示数量或数值变为原来的两倍。
加倍投入
The CEO said the company will double down on artificial intelligence.
首席执行官表示公司将在人工智能领域加倍投入。
原路折返
The hikers realized they had taken the wrong path and had to double back.
徒步者们意识到走错了路，只好原路折返。
兼作；兼当
The study doubles as a guest room.
这间书房兼作客房。
加倍，加倍，辛劳与烦恼；烈火燃烧，大锅沸腾。
The witches in Shakespeare's Macbeth chant "Double, double toil and trouble" as their spell doubles the power of the brew.
莎士比亚《麦克白》里的女巫在念“加倍，加倍，辛劳与烦恼”时，她们的咒语使魔药的威力加倍。
加倍你的快乐，加倍你的乐趣。
The Doublemint gum slogan tells you to double your pleasure and double your fun—that is, to enjoy twice as much.
Doublemint 口香糖的广告口号告诉你要让你的快乐加倍、乐趣加倍——也就是享受双倍。
Choose the next layer that will help you use double with more confidence.
Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.