concentration
gb/kˌɔnsəntɹˈeɪʃən/ us/kˌɔnsəntɹˈeɪʃən/
B1
英语
~ 1600
义项
0 个义项
名词
B1
state
1
focused mental attention
When you think very carefully about one thing and ignore other things.
用法模式：
[someone]'s concentration on [something]
常见错误：
Learners sometimes confuse 'concentration' with 'concertation' or mistakenly use it to mean 'gathering of people'.
近义词
focus (More common in everyday speech; slightly broader meaning.)
反义词
distraction (Refers to something that takes attention away, opposite of concentrating.)
搭配
lose concentration
|maintain concentration
|require concentration
|high level of concentration
主题
learning
|work
|psychology
|education
|core_vocabulary
例句
- Her concentration was broken by the loud noise outside.
- You need a lot of concentration to solve this puzzle.
- He maintained his concentration throughout the entire exam.
- The job requires intense concentration for long periods.
- Meditation helps improve your concentration.
学习者例句
- I need concentration to read this book.
- The noise makes my concentration bad.
- He has good concentration in class.
- This game needs much concentration.
名词
B2
state
2
dense grouping or collection
Many things or people in one small area.
用法模式：
a concentration of [things/people] in [place]
常见错误：
Learners may confuse this with 'focus' meaning, but here it refers to physical grouping, not mental attention.
近义词
cluster (Usually smaller or more irregular grouping.)
反义词
dispersion (Refers to the spreading out over a larger area.)
搭配
high concentration
|population concentration
|concentration area
主题
geography
|sociology
|space
|core_vocabulary
例句
- There is a high concentration of tech companies in Silicon Valley.
- The report shows a concentration of wealth in a small group of families.
- The highest concentration of pollution was found near the factory.
- Wildlife conservationists noted a concentration of rare birds in the region.
学习者例句
- There is a big concentration of shops here.
- The city has a high concentration of people.
- We saw a concentration of fish near the rocks.
名词
technical
B2
quantity
3
amount of substance per volume
How much of something is in a certain space or liquid.
用法模式：
the concentration of [substance] in [medium]
常见错误：
Learners may confuse this with 'strength' in non-scientific contexts, but here it is a precise measurement.
近义词
density (In science, density is related but refers to mass per volume, not proportion of substance.)
反义词
dilution (Process or state of making something less concentrated.)
搭配
high concentration
|low concentration
|concentration level
主题
science
|chemistry
|core_vocabulary
例句
- The salt concentration in seawater is about 3.5%.
- Scientists measured the concentration of carbon dioxide in the atmosphere.
- This medication has a high concentration of active ingredients.
学习者例句
- The water has a high salt concentration.
- We test the sugar concentration in juice.
- The air has low oxygen concentration.
语法
词典原形
concentration
IPA
GB/kˌɔnsəntɹˈeɪʃən/
US/kˌɔnsəntɹˈeɪʃən/
音节与重音
con - cen - tra - tion （4 个音节）
Stress on 3rd syllable (tra)
词形变化
Noun
- Base: concentration
- Plural: concentration, concentrations
词族
Forms
concentrations
noun
Core family
concentrate
verb A2
concentrated
adjective B2
相关表达
break someone's concentration
1/bɹˈeɪk sˈʌmwˌʌnz kˌɔnsəntɹˈeɪʃən/
fixed phrase
interrupt focused attention
To make someone stop focusing on what they are doing.
例句
- The noise from outside broke my concentration.
- Don't break her concentration while she's studying.
lose concentration
1/lˈuz kˌɔnsəntɹˈeɪʃən/
fixed phrase
stop focusing attention
To stop thinking carefully about something you are doing.
例句
- She lost concentration after her phone rang.
- If you lose concentration while driving, it can be dangerous.
maintain concentration
1/meɪntˈeɪn kˌɔnsəntɹˈeɪʃən/
fixed phrase
keep focusing attention
To continue thinking carefully about something without being distracted.
例句
- It's difficult to maintain concentration during long meetings.
- Athletes train to maintain concentration under pressure.