in tandem
in tandem — 慣用語
1. If two or more people, groups, or things work in tandem, they act together in a
合作；協力
兩人或兩方密切配合
If two or more people, groups, or things work in tandem, they act together in a closely coordinated way, combining their efforts toward a shared purpose — for example, two departments launching a product together, or two musicians performing a piece with perfectly matched timing.
The marketing and design teams worked in tandem to launch the new app before the holiday season.
行銷團隊與設計團隊密切合作（worked in tandem），在假期前推出了新應用程式。
work in tandem + infinitive of purpose
Dr. Manuela and the nursing staff worked in tandem throughout the emergency to stabilise the injured passengers.
Manuela 醫師與護理人員在急診期間全力合作（worked in tandem），穩定受傷乘客的狀況。
Nia and her brother run the family bakery in tandem — she bakes while he manages the counter.
Nia 和弟弟一起經營（run in tandem）家裡的烘焙坊——她負責烘焙，弟弟負責櫃檯。
run [something] in tandem
The two guitarists played in tandem, their notes weaving together without a single mistake.
兩位吉他手默契配合（played in tandem），他們的音符交織在一起，一個錯誤都沒有。
The city council worked in tandem with volunteer groups to set up more emergency shelters after the flood.
市議會與志工團體攜手合作（worked in tandem），在洪水過後搭建了更多緊急避難所。
in tandem with [partner]
- work in tandem
- operate in tandem
- run in tandem
- act in tandem
- in tandem with
- together
more general; 'in tandem' adds a sense of close coordination
- jointly
more formal; often used in legal or business contexts
- cooperatively
emphasises willingness to help each other
- in partnership
implies a formal or structured arrangement
- separately
acting alone rather than with others
- independently
without coordination or joint effort
文法句型
A and B work in tandem
A works in tandem with B
用法筆記
Often followed by 'with' to introduce the person or group that is being coordinated with: 'The police worked in tandem with local security teams.' Adding 'each other' after 'in tandem' is redundant and grammatically incorrect.
常見錯誤
2. Used to describe two events, changes, or processes that happen at the same time,
同時
兩件事同時發生
Used to describe two events, changes, or processes that happen at the same time, often in a way that is connected or influences each other — for example, prices rising at the same time as wages, or two cultural events taking place on the same weekend.
Wages and living costs have risen in tandem over the past five years.
過去五年來，薪資與生活支出同時上漲（risen in tandem）。
rise in tandem
The music festival and the art exhibition ran in tandem that weekend, so Kian bought tickets to both.
音樂節和藝術展在同一個週末同時舉辦（ran in tandem），於是 Kian 兩場的門票都買了。
An increase in tourism happened in tandem with improvements to the local airport.
旅遊業的成長與當地機場的改善同時發生（happened in tandem）。
happen in tandem with
The price of petrol and the cost of groceries often rise in tandem during periods of inflation.
在通貨膨脹期間，油價和食品價格往往同時上漲（rise in tandem）。
The city's population grew in tandem with the number of new jobs created by the technology sector.
該城市的人口與科技業創造的新職位數量同步成長（grew in tandem）。
- rise in tandem
- grow in tandem
- occur in tandem
- happen in tandem
- in tandem with
- simultaneously
more formal; emphasises exact timing
- at the same time
more common in everyday speech
- concurrently
formal; used in academic or professional writing
- separately
happening at different times
- independently
without a connected timing relationship
文法句型
X and Y happen/occur in tandem
X happens in tandem with Y
用法筆記
This sense focuses on simultaneity rather than cooperation. If the emphasis is on coordination between active participants, use sense 1 (WORKING TOGETHER) instead.
常見錯誤
3. Physically positioned or arranged so that one person or thing is directly behind
前後排列
一前一後地排列
Physically positioned or arranged so that one person or thing is directly behind another, as in a tandem bicycle (built for two riders, one behind the other) or a team of horses harnessed one after the other rather than side by side.
The children rode a bicycle built for two, sitting in tandem behind their father on the front seat.
孩子們騎著雙人自行車，一前一後（sitting in tandem）坐在父親後方。
sit in tandem
The horses pulled the carriage in tandem, with the lead horse directly in front of the second horse.
馬匹以縱列方式（in tandem）拉車，領頭的馬正好在第二匹馬的正前方。
Tandem parachute jumps require two people to jump strapped together in tandem from the aeroplane.
雙人高空跳傘需要兩人綁在一起，一前一後（in tandem）從飛機上跳下。
jump in tandem
The office chairs were arranged in tandem rows so that each employee sat directly behind another.
辦公椅排成縱列（arranged in tandem），每位員工正好坐在另一個人正後方。
- sit in tandem
- ride in tandem
- arranged in tandem
- jump in tandem
- one behind the other
everyday language; less specialised
- in single file
used for people or animals walking in a line
- side by side
arranged next to each other rather than one behind the other
文法句型
sit/ride/jump in tandem
arranged in tandem
用法筆記
This is the oldest sense of 'in tandem', referring to the original tandem carriage design (horses harnessed one in front of the other). Today it is used mainly in specific contexts such as cycling (tandem bicycles), skydiving (tandem jumps), or any physical arrangement where items follow one after another in a line.