radiation
gb/ɹˌeɪdiˈeɪʃən/ us/ɹˌeɪdiˈeɪʃən/
B1
英语
~ 4600
义项
0 个义项
名词
B1
event
1
energy sent out as waves or particles
Energy that comes from a source as waves or tiny particles, often from the sun or dangerous materials.
用法模式：
[something] gives off radiation
常见错误：
Learners sometimes confuse 'radiation' with 'radio' or 'radiator', but they are unrelated concepts.
近义词
emission (A general term for something being sent out, not limited to energy.)
反义词
absorption (The process of taking in energy or particles rather than emitting them.)
搭配
radiation exposure
|radiation levels
|radiation therapy
|solar radiation
|ionizing radiation
主题
science
|environment
|health
|nature
例句
- The scientists measured the amount of radiation coming from the reactor.
- Too much exposure to UV radiation can damage your skin.
- The satellite collects data on solar radiation.
- Radiation from the radioactive waste is dangerous to humans.
- Lead shielding can block most types of harmful radiation.
学习者例句
- The sun gives us light and radiation.
- Radiation from the sun can be strong in summer.
- Some machines use radiation to take pictures inside the body.
- Too much radiation is bad for health.
名词
technical
B2
action
2
medical use of radiation to treat disease
A medical treatment that uses powerful radiation to kill cancer cells.
用法模式：
receive radiation for [an illness]
常见错误：
Learners may confuse 'radiation' (treatment) with 'radiation' as harmful exposure; context is important.
近义词
radiotherapy (Technical medical term for this treatment.)
反义词
chemotherapy (A different type of cancer treatment using drugs instead of radiation.)
搭配
radiation therapy
|radiation treatment
|undergo radiation
主题
medicine
|health
|science
例句
- She is undergoing radiation for breast cancer.
- Radiation is often combined with chemotherapy for better results.
- The patient completed six weeks of daily radiation treatments.
学习者例句
- He gets radiation to treat his cancer.
- My aunt had radiation after surgery.
- Radiation can help kill cancer cells.
名词
B2
event
3
spreading outward from a central point
When something spreads out from the center in all directions.
近义词
dispersion (Focuses on scattering, not necessarily from a central point.)
反义词
concentration (Gathering together toward a central point.)
搭配
heat radiation
|wave radiation
主题
science
|space
例句
- The design shows the radiation of lines from the center.
- Heat radiation occurs when warmth spreads out from a hot object.
- The explosion caused the radiation of shock waves in all directions.
学习者例句
- The sun makes heat radiation.
- The lines show the radiation from the middle point.
- Radiation happens when heat moves away from something hot.
语法
词典原形
radiation
IPA
GB/ɹˌeɪdiˈeɪʃən/
US/ɹˌeɪdiˈeɪʃən/
音节与重音
ra - di - ation （3 个音节）
Stress on 3rd syllable (ation)
词形变化
Noun
- Base: radiation
- Plural: radiation, radiations
词族
Forms
radiations
noun
Core family
Negative and opposite forms
nonradioactive
adjective
Advanced or less common
irradiate
verb
irradiation
noun
radiotherapy
noun
相关表达
radiation sickness
1/ɹˌeɪdiˈeɪʃən sˈɪknəs/
fixed phrase
technical
illness from too much radiation exposure
A serious illness caused by too much exposure to dangerous radiation.
例句
- Several workers developed radiation sickness after the accident.
- Radiation sickness can cause vomiting, hair loss, and even death.
radiation therapy
1/ɹˌeɪdiˈeɪʃən θˈɛɹəpi/
fixed phrase
technical
treatment using controlled radiation doses
A medical treatment that uses controlled amounts of radiation to kill cancer cells or other harmful cells.
例句
- She is receiving radiation therapy for her lung cancer.
- Radiation therapy is often combined with surgery for better results.
solar radiation
1/sˈoʊlɚ ɹˌeɪdiˈeɪʃən/
fixed phrase
technical
energy coming from the sun
Energy from the sun that travels as light or other invisible waves.
例句
- Solar radiation is stronger at high altitudes.
- Plants use solar radiation to make food through photosynthesis.