reduction
gb/ɹɪdˈʌkʃən/ us/ɹɪdˈʌkʃən/
B1
英语
~ 1600
义项
0 个义项
名词
B1
action
1
process of making smaller or less
The act of making something smaller or less.
用法模式：
a reduction in [something]
常见错误：
Learners sometimes confuse 'reduction' with 'discount'. 'Reduction' is the process of making something less, while 'discount' usually refers to a lower price offered to customers.
近义词
decrease (More general and common; can be used for both countable and uncountable changes.)
|
cutback (Often used for reductions in spending, staff, or services.)
反义词
increase (Opposite in meaning; refers to making something larger or greater.)
搭配
price reduction
|risk reduction
|reduction in size
|waste reduction
|cost reduction
主题
business
|daily life
|science
|core_vocabulary
例句
- The company announced a significant reduction in staff numbers.
- We need to work on the reduction of plastic waste.
- There has been a reduction in crime rates this year.
- The new law aims at the reduction of carbon emissions.
- A 10% reduction in prices attracted more customers.
学习者例句
- There is a reduction in food prices.
- The doctor wants a reduction in my sugar intake.
- We saw a reduction in noise after the window was fixed.
- The school made a reduction in homework.
- A reduction in costs helped the shop.
名词
technical
B2
event
2
chemical gain of electrons
In chemistry, when a substance gains electrons or has a lower oxidation level.
常见错误：
Learners may confuse 'reduction' with 'reducing amount'. In chemistry, it refers to electron gain, not making something smaller.
近义词
electron gain (Describes the same process but less commonly used as a term.)
反义词
oxidation (The opposite chemical process where electrons are lost.)
搭配
oxidation and reduction
|reduction reaction
|metal reduction
主题
science
例句
- Reduction occurs when copper ions gain electrons to form copper metal.
- The reaction involves both oxidation and reduction steps.
- Hydrogen gas is produced by the reduction of protons.
学习者例句
- Reduction is when something gets more electrons.
- In this reaction, iron goes through reduction.
- Reduction and oxidation happen together.
名词
B2
entity
3
thickened sauce by boiling down
A sauce made thicker and stronger by cooking it until some liquid is gone.
常见错误：
Learners sometimes think 'reduction' here means less food; it actually means concentrated flavor by boiling down liquid.
近义词
concentrate (General term for a liquid with reduced volume and intensified flavor.)
搭配
wine reduction
|balsamic reduction
主题
food
|food_drink
|daily_life
例句
- The chef served the steak with a red wine reduction.
- Balsamic reduction adds sweetness to the salad.
- The sauce is a simple lemon and butter reduction.
学习者例句
- I made a balsamic reduction for the salad.
- The meat came with a wine reduction.
- We had fish with lemon reduction.
语法
词典原形
reduction
IPA
GB/ɹɪdˈʌkʃən/
US/ɹɪdˈʌkʃən/
音节与重音
re - duc - tion （3 个音节）
Stress on 2nd syllable (duc)
词形变化
Noun
- Base: reduction
- Plural: reduction, reductions
词族
Forms
reductions
noun
Core family
reduce
verb A2
Related words
reducer
noun
Negative and opposite forms
irreducible
adjective
Advanced or less common
reducible
adjective
reductive
adjective
相关表达
price reduction
1/pɹˈaɪs ɹɪdˈʌkʃən/
fixed phrase
lowering the selling price
When the cost of something is made lower.
例句
- The store is offering a big price reduction on winter coats.
- We waited for a price reduction before buying the laptop.
risk reduction
1/ɹˈɪsk ɹɪdˈʌkʃən/
fixed phrase
making danger less likely
Doing things to make danger or harm less likely.
例句
- Seat belts are an important part of risk reduction in cars.
- The program focuses on risk reduction for heart disease.
waste reduction
1/wˈeɪst ɹɪdˈʌkʃən/
fixed phrase
producing less waste material
Making less trash or unwanted material.
例句
- Waste reduction is key to protecting the environment.
- The company started a waste reduction program.