positive
gb/pˈɑzɪtɪv/ us/pˈɑzɪtɪv/
B1
英语
~ 1300
义项
0 个义项
adjective
B1
property
1
Optimistic or confident in outlook
Feeling sure that good things will happen or seeing the good side of things.
用法模式：
[someone] is positive about [something]
常见错误：
Learners sometimes confuse 'positive' with 'sure' in contexts like 'I am positive he left,' which is a different meaning.
近义词
optimistic (Focuses on expecting good outcomes, often in a general sense.)
反义词
negative (Focuses on expecting bad outcomes or seeing the bad side of situations.)
搭配
positive attitude
|positive outlook
|stay positive
|positive mindset
|remain positive
主题
emotions
|daily life
|core_vocabulary
例句
- She always tries to stay positive, even when things are hard.
- The coach was positive about the team's chances.
- His positive attitude helped everyone feel better.
- Despite the setback, they remained positive about the future.
学习者例句
- I am positive about my exam.
- She stays positive when it rains.
- He has a positive view of life.
- We try to be positive every day.
adjective
B2
property
2
Indicating the presence of something
Showing that something is there or true, often from a test or check.
用法模式：
[test/result] is positive for [something]
常见错误：
Learners may confuse this use with emotional positivity; here it refers to factual presence, not feelings.
近义词
confirmed (Emphasizes certainty that something is true or present.)
反义词
negative (Indicates absence or lack of something in tests or results.)
搭配
test positive
|positive result
|positive for COVID-19
|positive diagnosis
主题
science
|health
例句
- The test came back positive for the virus.
- She tested positive for the banned substance.
- The sample showed a positive result for bacteria.
学习者例句
- I tested positive for flu.
- The result is positive for sugar.
- He is positive for the illness.
adjective
B1
property
3
Completely certain about something
Being 100% sure about something.
用法模式：
[someone] is positive that [clause]
常见错误：
Learners sometimes confuse this with 'optimistic'; here it refers to certainty, not hopefulness.
近义词
certain (Very close in meaning; interchangeable in most contexts.)
反义词
unsure (Not certain or confident about something.)
搭配
absolutely positive
|quite positive
|positive identification
主题
daily life
|core_vocabulary
例句
- I’m positive I left my keys on the table.
- She was positive that she had locked the door.
- Are you positive this is the right address?
学习者例句
- I am positive we met before.
- She is positive he is here.
- He is positive about the answer.
adjective
technical
B2
property
4
Having a net electric charge of protons
In science, having more protons than electrons in atoms or particles.
近义词
charged (General term for having an electrical charge; not specific to being positive.)
反义词
negative (Having more electrons than protons.)
搭配
positive charge
|positive ion
主题
science
例句
- A proton has a positive electric charge.
- The particle became positive after losing electrons.
- Positive ions are attracted to negative ones.
学习者例句
- A proton is positive.
- This atom is positive.
- Positive charges go to negative charges.
adjective
B1
property
5
More than zero in amount or value
More than zero in number or amount.
近义词
above zero (Plainly describes being greater than zero.)
反义词
negative (Less than zero in value or amount.)
搭配
positive number
|positive growth
主题
math
|science
例句
- The company reported positive earnings this quarter.
- Temperatures stayed in the positive range all week.
- In math, a positive number is greater than zero.
学习者例句
- Two is a positive number.
- We have positive growth this year.
- The temperature is positive today.
语法
词典原形
positive
IPA
GB/pˈɑzɪtɪv/
US/pˈɑzɪtɪv/
音节与重音
pos - it - ive （3 个音节）
Stress on 1st syllable (pos)
词形变化
Adjective
- Base: positive
词族
Core family
positively
adverb B1
positivity
noun
Negative and opposite forms
相关表达
positive thinking
1/pˈɑzɪtɪv θˈɪŋkɪŋ/
fixed phrase
Focusing on good possibilities and outcomes
Trying to think about good things and expect good results instead of bad ones.
例句
- Positive thinking can improve your mood and health.
- She believes in the power of positive thinking.
stay positive
1/stˈeɪ pˈɑzɪtɪv/
fixed phrase
Keep an optimistic attitude
Keep feeling hopeful and looking for good things, even when things are hard.
例句
- Even during tough times, it's important to stay positive.
- She told her friend to stay positive before the big exam.
test positive for
1/tˈɛst pˈɑzɪtɪv fɚ/
fixed phrase
Be confirmed as having something by a test
When a test shows that you have a specific thing, like a disease or substance.
例句
- He tested positive for COVID-19 last week.
- The athlete tested positive for banned drugs.