double
double — 形容詞
1. two times the usual size, amount, number, or strength of something; made up of t
兩倍；雙層
大小或數量為平常的兩倍
two times the usual size, amount, number, or strength of something; made up of two similar parts that go together.
Zuri ordered a double coffee because she had a long night ahead.
Zuri 因為接下來要熬夜，所以點了一杯雙份濃縮咖啡。
double + noun for two times the amount
The restaurant charged double the normal price for the holiday menu.
那家餐廳在假日期間收取雙倍於平常的價格。
double the + noun for comparison
Lan wrote his phone number on a double sheet of paper, folded neatly.
Lan 把電話號碼寫在一張對摺的紙上。
A double door at the entrance made the hall look grand and open.
入口的雙扇門讓大廳顯得氣勢宏偉、空間開闊。
文法句型
double + noun
用法筆記
Attributive only — this sense of double must come before the noun it describes. You can say a double bed but not The bed is double.
常見錯誤
2. describes a flower that has many more petals than the usual kind, giving it a de
重瓣的
花瓣層數比一般品種多的花朵
describes a flower that has many more petals than the usual kind, giving it a dense, layered look.
Sirin planted double peonies in the garden because their thick petals lasted longer in the rain.
Sirin 在花園裡種了重瓣芍藥，因為厚實的花瓣在雨中能維持更久。
double + flower type for many-petalled blooms
The florist recommended a double rose variety for the wedding bouquet.
花店老闆推薦在婚禮花束中使用重瓣玫瑰。
Élise prefers double tulips over single ones since they look fuller in a vase.
Élise 認為重瓣鬱金香插在花瓶裡看起來更飽滿。
Gardeners often choose double camellias for their rich, rounded shape.
園丁們常選擇重瓣山茶花，因為它們的花朵圓潤豐滿。
- fully double
technical gardening term for the densest petal arrangement
- multi-petalled
descriptive but not a standard horticulture label
- single
a flower with one layer of petals
文法句型
double + flower/plant noun
用法筆記
Almost always used in gardening discussions. This sense does not apply to fruits or leaves — only flowers. The opposite is single-flowered.
3. designed or built to hold, seat, or serve two people at the same time — used esp
雙人的
設計給兩個人使用的家具或空間
designed or built to hold, seat, or serve two people at the same time — used especially for beds, rooms, and seats.
The hotel upgraded the family to a double room with two large windows facing the sea.
旅館把那家人升等為一間有兩扇大窗戶、面向大海的雙人房。
double room = room for two people
Nellie bought a double sofa for the living room so two people could nap comfortably.
Nellie 買了一張雙人沙發放在客廳，這樣兩個人都能舒服地躺著。
Samir booked a double cabin on the ferry for the overnight crossing.
Samir 為橫跨夜間的渡輪訂了一間雙人艙房。
The old kitchen had a double sink, one side for washing and one for rinsing.
那棟老房子的廚房有一個雙水槽，一邊洗碗、一邊沖水。
- single
made for one person only
文法句型
double + noun (furniture/room)
用法筆記
Overlaps with sense 1 (TWICE AS MUCH) when applied to beds and rooms. The difference: MADE FOR TWO focuses on capacity (fits two people), while TWICE AS MUCH focuses on size or quantity. A double bed is bigger than a single; a double room is priced for two occupants.
4. having two different roles, purposes, or characteristics at the same time — ofte
雙重用途的
同時具有兩種不同角色或特質
having two different roles, purposes, or characteristics at the same time — often used to describe something that serves two functions or combines two qualities.
The new bridge has a double purpose: it carries cars and acts as a walking path.
這座新建的橋梁有雙重功用：讓車輛通行，同時也作為散步步道。
double + purpose/function for combined roles
Gabriel felt a double sense of pride and sadness watching his son leave for university.
Gabriel 看著兒子離家上大學，心中交織著驕傲與不捨的雙重感受。
double + abstract noun for combined feelings
The movie had a double meaning that only older audiences understood.
那部電影有雙重意義，只有年紀較大的觀眾才看得懂。
Living abroad gave Camila a double identity — she belonged to two cultures at once.
旅居海外讓 Camila 擁有雙重身分——她同時歸屬於兩種文化。
- single
having only one purpose or characteristic
文法句型
double + noun (abstract quality)
用法筆記
Common with abstract nouns such as purpose, meaning, role, standard, identity, sense. Unlike sense 1, this sense does not describe physical size or quantity.
常見錯誤
double — 名詞
1. someone whose face is nearly identical to another person's, making it easy to co
長得像；分身
長得和另一個人幾乎一模一樣的人
someone whose face is nearly identical to another person's, making it easy to confuse one with the other.
At the party, a stranger told Tariq he was the double of a famous actor.
派對上，一個陌生人告訴 Tariq，說他長得像一位知名演員。
the double of someone — lookalike construction
The film used a stunt double for the dangerous car-chase scenes.
這部電影找了特技替身來拍攝危險的飛車追逐戲。
stunt double — specific type of lookalike
People often stop Rachel on the street because she is the double of a well-known singer.
Rachel 走在街頭常被人攔下，因為她長得像一位知名歌手。
The president's double appeared at the public event to confuse the press.
總統的分身出現在公開活動中，讓媒體混淆。
- lookalike
more general; can describe objects or people
- spitting image
informal expression; stronger emphasis on exact resemblance
- doppelgänger
from German; suggests a ghostly or coincidental double
文法句型
sb's double
a double of someone
用法筆記
Often used with possessive: John's double. In entertainment contexts, see also stunt double (for dangerous action scenes) and body double (for physical replacement).
2. a form of tennis, badminton, or similar racket sport in which two players team u
雙打
網球等運動中每隊兩人的比賽形式
a form of tennis, badminton, or similar racket sport in which two players team up on each side of the net.
Emre and his sister play doubles together every Saturday at the local tennis club.
Emre 和他妹妹每週六都在當地的網球俱樂部一起打雙打。
play doubles — common verb + noun combination
The doubles match lasted over two hours because both teams kept scoring evenly.
那場雙打比賽打了兩個多小時，因為兩隊得分一直很接近。
doubles match — a game with two per side
Camila prefers doubles to singles because she likes sharing the court with a partner.
Camila 比較喜歡打雙打而不是單打，因為她喜歡和搭檔一起在場上。
The badminton club is looking for a new doubles partner for the regional tournament.
這家羽球俱樂部正在尋找新的雙打搭檔參加區域錦標賽。
- singles
a match with one player on each side
文法句型
play doubles
doubles match
doubles partner
用法筆記
Always plural in form (doubles) but takes a singular verb when referring to the game format: Doubles is more fun than singles. The singular double is not used for this meaning.
常見錯誤
3. when a team claims victory in two important tournaments — most often the top lea
雙料冠軍
在同個賽季贏得兩項主要賽事
when a team claims victory in two important tournaments — most often the top league trophy plus a national cup — within one playing year.
The team won the double in 2023, taking both the league title and the national cup.
這支球隊在 2023 年贏得雙料冠軍，同時奪下聯賽冠軍和國家盃。
win the double — fixed phrase
Only three clubs in the country's history have ever achieved the league and cup double.
該國歷史上只有三支俱樂部達成過聯賽和盃賽的雙料冠軍。
league and cup double — common elaboration
Fans celebrated the double with a parade through the city centre.
球迷們在市區遊行慶祝雙料冠軍。
Samir hopes his favourite club can pull off a double this season.
Samir 希望他喜歡的球隊本季能完成雙料冠軍。
文法句型
win the double
the league and cup double
用法筆記
Primarily used in British football (soccer). Other sports may use double differently. The specific competitions vary by country, but the core idea is two major trophies.
4. a baseball hit that sends the person batting safely to second base before the fi
二壘安打
棒球中打者安全抵達二壘的安打
a baseball hit that sends the person batting safely to second base before the fielding side can stop them.
Tariq hit a double in the third inning, sending the runner on first home.
Tariq 在第三局打出一支二壘安打，讓一壘的跑者直接跑回本壘得分。
hit a double — standard verb + noun phrase
The batter's double drove in two runs and brought the crowd to its feet.
打者的二壘安打打回兩分，全場觀眾都站起來歡呼。
With a double to deep centre field, the player reached second base before the throw arrived.
一支深遠的中外野二壘安打讓打者在球傳回來之前就踏上了二壘。
The coach taught the young players how to turn a single into a double by watching the fielder.
教練教年輕球員如何觀察外野手，把一壘安打跑成二壘安打。
- two-base hit
more formal baseball terminology
- single
a hit that allows reaching only first base
文法句型
hit a double
a double to left field
用法筆記
This is a baseball term and not used in other sports. The scoring progression is single → double → triple → home run. Usually followed by the preposition to (direction) or off (pitcher).
5. an amount, size, or quantity that is two times greater than the usual or expecte
雙倍；兩倍量
比平常多一倍的數量或份量
an amount, size, or quantity that is two times greater than the usual or expected one — for example, a drink with twice the standard measure, or a payment of twice the normal rate.
The bartender poured a double of whisky for the tired traveller.
酒保為那位疲憊的旅人倒了一杯雙份威士忌。
a double of [alcohol] — twice the standard spirit measure
Rachel was paid double for working on the national holiday.
Rachel 在國定假日上班，領了雙倍薪資。
paid double — twice the usual pay
The recipe calls for a double of the sauce when cooking for a large group.
這份食譜要求醬汁用量加倍，因為要煮給一大群人吃。
Lan managed to save double what he had planned by the end of the year.
Lan 年底的儲蓄金額比原本計畫的多出一倍。
- twice as much
phrase used instead of the noun when clarity is needed
- two times
more conversational; less precise for formal contexts
- half
one of two equal parts of something
文法句型
double the + noun
a double of + liquid
用法筆記
When referring to alcoholic drinks, a double is twice a single measure (commonly 25 ml → 50 ml in the UK, or 1.5 oz → 3 oz in the US). For other contexts, double can refer to any quantity.
double — 動詞
1. to become two times as large in size, amount, or number, or to cause something t
加倍；翻倍
使數量或程度變成原來的兩倍
to become two times as large in size, amount, or number, or to cause something to reach twice its previous level.
The company doubled its profits in just two years by expanding into new markets.
這家公司靠著拓展新市場，在短短兩年內讓利潤翻了一倍。
transitive: double + noun (profits/sales/value)
The population of the town has doubled since the new factory opened.
自從新工廠啟用後，這個小鎮的人口增加了一倍。
intransitive: population/price/value doubles
Nellie doubled the recipe so there would be enough cake for all the guests.
Nellie 把食譜份量加倍，這樣才夠所有客人吃。
House prices in the area doubled over the past decade, pushing many families out.
該地區的房價在過去十年間翻了一倍，導致許多家庭買不起房子。
Zuri doubled her daily workout time after she signed up for the marathon.
Zuri 報名馬拉松後，把每天運動時間加倍了。
- multiply by two
mathematical and less natural in everyday speech
- increase twofold
formal register, used in writing
- halve
to reduce by fifty percent, the opposite operation
文法句型
double + noun
double in + noun
double + by/over + time period
用法筆記
Can be transitive (She doubled the amount) or intransitive (The amount doubled). A common pattern is double + in + measure: doubled in size/value/price. Do not say double more — double already means two times.
常見錯誤
2. to serve an extra purpose or function beyond the main one; to be used in a secon
兼作；兼任
在原本功能之外再扮演另一種角色
to serve an extra purpose or function beyond the main one; to be used in a second role while still fulfilling the first.
The spare bedroom doubles as a home office when Gabriel needs to work late.
Gabriel 需要加班時，備用臥室就兼作辦公室使用。
double as — most common pattern for a second function
The same actor doubled for the lead performer during the fight scene.
同一位演員在打鬥戲中代替了主角的位置。
double for — replacing someone in a role
The kitchen table doubles as a desk for the children to do their homework.
廚房餐桌同時也當作孩子們做功課的書桌。
In the small theatre company, Sirin doubled as stage manager and lighting technician.
在這個小型劇團裡，Sirin 同時身兼舞台經理和燈光師。
- serve as
more general; does not imply a primary vs. secondary function
- function as
slightly more formal
文法句型
double as + noun
double for + noun
double in + role
用法筆記
Always used with as, for, or in to introduce the second role. The subject is most often an object or a place, not a person directly (except in theatre contexts).
double — 副詞
1. so that something lies in two thicknesses or folds, as when paper, cloth, or a b
對摺地
將物品折成兩層或兩部分
so that something lies in two thicknesses or folds, as when paper, cloth, or a blanket is folded back onto itself.
Dahlia folded the letter double so that it would fit into the small envelope.
Dahlia 把信對摺，這樣才能塞進小信封裡。
folded double — common verb + adverb pair
The old man was bent double from years of working in the fields.
那位老人因為長年在田裡工作，彎腰駝背得很厲害。
bent double — fixed phrase for severely hunched posture
Emre wrapped the scarf double around his neck to stay warm in the blizzard.
Emre 把圍巾在脖子上繞了兩層，以免在暴風雪中受寒。
The blanket was folded double and placed at the foot of the bed.
毯子對摺後放在床尾。
文法句型
folded double
wrapped double
bent double
用法筆記
This sense appears mostly in fixed verb phrases: bent double, folded double, wrapped double. In modern speech, a similar meaning is often expressed with in half or in two.
2. in a state where the eyes perceive two images of a single object, so that everyt
看成雙影
眼睛看到物體出現兩個重疊影像
in a state where the eyes perceive two images of a single object, so that everything appears twice — typically caused by tiredness, illness, or drinking too much alcohol.
After three days without sleep, the driver began to see double and had to pull over.
連續三天沒睡之後，那位司機開始看到重影，只好把車停在路邊。
see double — the standard phrase for this condition
Léa was seeing double after the bump on her head and went to the clinic.
Léa 撞到頭後出現複視，立刻去了診所。
The doctor explained that seeing double can be a sign of a more serious eye problem.
醫生解釋說，看到重影可能是更嚴重的眼睛問題的徵兆。
Too many drinks left him seeing double, and he could barely walk straight.
酒喝太多讓他眼前出現雙重影像，走路都走不穩了。
- have double vision
the medical or more formal expression
文法句型
see double
be seeing double
用法筆記
Almost exclusively used in the expression see double or be seeing double. The medical term is diplopia. In informal contexts, it is most commonly associated with drunkenness.
3. to a degree or extent that is two times greater — used to intensify a comparativ
加倍地
以兩倍的程度修飾比較級形容詞或副詞
to a degree or extent that is two times greater — used to intensify a comparative adjective or adverb, meaning much more so.
The new flat is double the size of their old one, and the rent is only slightly higher.
新公寓的面積比舊的那間大一倍，但租金只高了一點點。
double the + comparative noun (size/price/length)
Gabriel worked double as hard in the second semester to improve his grades.
Gabriel 在下學期付出了加倍的努カ來提升成績。
double as + adverb — intensifying the comparison
The hand-knitted scarf was double as warm as any store-bought one.
這條手織圍巾比任何店裡買的都暖和一倍。
Rachel felt double as confident after the training course ended.
Rachel 在培訓課程結束後，自信心增加了兩倍。
- twice as
more common in American English; interchangeable with double as
- half as
the opposite degree of comparison
文法句型
double + comparative adjective/adverb
用法筆記
This sense is distinct from the adjective TWICE AS MUCH: double here modifies an adjective or adverb (double as fast, double as big). In American English, twice is more common than double in this pattern. British English accepts both.