reactions

IPA/riˈæk.ʃən/
KK[riˈækʃənz]IPA/riˈæk.ʃən/

reactions — 名詞

  • reactionssingular
  • reactionsesplural

1. what you do, feel, or say because something has happened, or as a result of a si

1.名詞B1
釋義

反應

對某事的行為、感受或回應

what you do, feel, or say because something has happened, or as a result of a situation or event

例句

Selim's first reaction to the news was a long, silent pause.

Selim 聽到消息的第一反應是長時間的沉默。

reaction + to + noun (news)

The audience reaction to the final scene was loud applause.

觀眾對最後一幕的反應是熱烈的掌聲。

常見搭配
  • strong reaction
  • mixed reaction
  • immediate reaction
  • emotional reaction
  • reaction to
同義詞
  • response

    more neutral and formal than reaction

  • reply

    used only for spoken or written answers, not feelings

  • feedback

    opinions about a product, service, or performance

文法句型

reaction + to + noun

用法筆記

Often followed by 'to' to show what caused the response. The adjective before 'reaction' (e.g. strong, mixed, immediate) shows the type of response.

常見錯誤

My reaction of the movie was good.
My reaction to the movie was positive.
use 'to', not 'of', after 'reaction'.

2. the speed at which someone notices something and responds, especially in a physi

2.名詞B2
釋義

反應力

迅速回應變化的能力

the speed at which someone notices something and responds, especially in a physical or urgent situation

例句

A racing driver needs incredibly quick reactions to avoid crashes.

賽車手需要有極快的反應力,才能避免撞車。

quick reactions — adjective + plural noun

Megan's reactions slowed down after she had been studying for six hours straight.

Megan 連續念了六小時書之後,反應力變得遲鈍了。

常見搭配
  • quick reactions
  • slow reactions
  • lightning reactions
  • good reactions
  • poor reactions
同義詞
  • reflexes

    more specific — refers to automatic physical responses

  • alertness

    focuses on being awake and ready, not speed of response

文法句型

possessive + reactions

用法筆記

Almost always used in the plural form (reactions) or as an uncountable noun (reaction time). Common with adjectives like quick, fast, slow, poor, lightning.

常見錯誤

He has good reaction.
He has good reactions.' or 'He has a good reaction time.
for physical speed of response, use the plural.

3. a way of behaving or thinking that deliberately goes against what is usual, expe

3.名詞B2
釋義

反抗;反彈

刻意與主流或權威相反的態度

a way of behaving or thinking that deliberately goes against what is usual, expected, or required by society or authority

例句

The punk fashion movement was a reaction against the conservative styles of the 1970s.

龐克時尚運動是對 1970 年代保守風格的一種反抗。

reaction + against + noun — the target of opposition

Sofie dyed her hair bright pink as a reaction against her school's strict uniform policy.

Sofie 把頭髮染成亮粉紅色,是對學校嚴格制服規定的一種反彈。

常見搭配
  • reaction against
  • backlash
  • rebellion
  • pushback
同義詞
  • backlash

    stronger and more hostile; a sudden negative reaction

  • rebellion

    more active and organized — involves defying authority openly

  • pushback

    informal, often used in business or politics

反義詞

文法句型

reaction + against + noun

常見錯誤

His reaction to the government was to join the protest.
His reaction against government policies led him to join the protest.
use 'against', not 'to', when describing opposition.

4. a physical response by the body, usually unpleasant, caused by something a perso

4.名詞B2
釋義

不良反應

身體對食物或藥物的不良反應

a physical response by the body, usually unpleasant, caused by something a person eats, touches, or takes as medicine

例句

When three-year-old Liam ate peanut butter for the first time, he got a red skin reaction around his mouth.

三歲的 Liam 第一次吃花生醬時,嘴巴周圍出現紅色的皮膚反應。

skin reaction — type of reaction + location on body

Élise had a bad reaction to the antibiotic and broke out in red spots.

Élise 對那種抗生素產生不良反應,身上長滿了紅斑。

reaction + to + noun (cause of reaction)

常見搭配
  • allergic reaction
  • bad reaction
  • skin reaction
  • reaction to
同義詞
  • allergy

    a long-term condition, not the event itself

  • side effect

    specifically for reactions to drugs, not food

文法句型

allergic reaction + to + noun

用法筆記

Common in medical contexts. 'Allergic reaction' is the most frequent collocation. Used with 'to' to specify the trigger (food, drug, insect sting, etc.). Can be mild (rash, sneezing) or severe (anaphylaxis).

常見錯誤

She had reaction to the medicine.
She had a reaction to the medicine.
'reaction' in this sense is countable and needs an article.

5. the way materials mix, separate, or change into different substances — for examp

5.名詞B2
釋義

化學反應

物質互相作用形成新物質的過程

the way materials mix, separate, or change into different substances — for example, when baking soda and vinegar fizz together

例句

In science class, the students mixed baking soda and vinegar to observe a chemical reaction.

自然課上,學生將小蘇打和醋混合,觀察化學反應。

chemical reaction — noun phrase used with 'observe'

When iron rusts, a slow chemical reaction between the metal and oxygen is taking place.

鐵生鏽時,金屬與氧之間正在發生緩慢的化學反應。

chemical reaction + between + noun + and + noun

常見搭配
  • chemical reaction
  • produce a reaction
  • cause a reaction
  • reaction between
同義詞
  • chemical process

    broader term — includes reactions and other changes

  • change

    too general; use only when context is already clear

文法句型

chemical reaction + between + plural noun

用法筆記

This meaning belongs to the domain of chemistry and science. 'Chemical reaction' is the standard full term. Can be described as fast or slow, and as producing or consuming heat (exothermic / endothermic).

常見錯誤

The chemical reaction between the two elements created water.
The chemical reaction between hydrogen and oxygen produces water.
use 'produces' or 'releases', not 'creates', for standard chemistry descriptions.

6. a determined opposition to any reform in society or government, often with a wis

6.名詞C1
釋義

保守抗拒

反對社會或政治變革的立場

a determined opposition to any reform in society or government, often with a wish to return to earlier values or systems

例句

The rise of political reaction in 1930s Europe led to stricter controls on what writers could publish.

1930 年代歐洲的保守抗拒勢力抬頭,導致作家能出版的內容受到更嚴格的控制。

uncountable use — 'reaction' as an abstract political force

Historians describe the post-war decades as a period of reaction, when every proposal for social reform was met with suspicion.

歷史學家將戰後幾十年描述為保守抗拒期,每一項社會改革的提案都受到質疑。

常見搭配
  • period of reaction
  • force of reaction
  • rise of reaction
同義詞
  • conservatism

    broader and less extreme; not always opposed to all change

  • traditionalism

    focuses on preserving customs rather than opposing political change

反義詞
  • progressivism

    belief in gradual social improvement through change

  • reform

    the act of making changes to improve a system

用法筆記

Uncountable in this sense; do not use 'a reaction' when describing the political stance. Often used in history and political science writing. The adjective 'reactionary' describes a person who holds these views.

常見錯誤

The prime minister is a reaction.
The prime minister is a reactionary.
'reaction' is the concept; 'reactionary' is the person who supports it.

7. the backward push of equal strength that arises whenever one object presses agai

7.名詞C1
釋義

反作用力

施力時物體產生的反向等量力

the backward push of equal strength that arises whenever one object presses against another object, as described by Newton's third law of motion

例句

When you push against a wall, the wall exerts an equal reaction force back on your hand.

當你推牆壁時,牆壁會對你的手產生等量的反作用力。

reaction force — technical term in physics

When the rocket engine ignites, the reaction from the burning fuel pushes the rocket upward in the opposite direction.

火箭引擎點燃時,燃料燃燒所產生的反作用力將火箭向上推向相反方向。

常見搭配
  • action and reaction
  • reaction force
  • equal and opposite reaction

文法句型

action + and + reaction

用法筆記

Almost always appears in physics contexts. The phrase 'action and reaction' is a fixed expression from Newton's third law. 'Reaction force' is a common compound noun in engineering and mechanics.

常見錯誤

For every action, there is a reaction.
For every action, there is an equal and opposite reaction.
the phrase 'equal and opposite' is part of the standard statement of Newton's third law.

同根字

常見搭配

名詞搭配

  • chain reaction
  • knee-jerk reaction
  • allergic reaction
  • chemical reaction
  • adverse reaction

常用片語

  • in reaction to
  • as a reaction against
  • cause a reaction
  • provoke a reaction

介系詞搭配