Word · CEFR C2 · Frequency #17177
stratospheres
平流层；同温层
stratospheres is the plural of stratosphere.
the atmospheric layer between the troposphere and the mesosphere
- 1.
The region of the uppermost atmosphere where the temperature increases along with the altitude due to the absorption of solar ultraviolet radiation by ozone.
大气最上层区域,因臭氧吸收太阳紫外线辐射,温度随高度升高而升高
- 2.
the atmospheric layer between the troposphere and the mesosphere
对流层与中间层之间的大气层
大气最上层区域,因臭氧吸收太阳紫外线辐射,温度随高度升高而升高；对流层与中间层之间的大气层；同温层；最上层；尖端的学科领域；[医] 同温层
In use
Commercial jets usually fly in the lower stratosphere to avoid bad weather.
The stratosphere contains the ozone layer that protects life on Earth.
Weather balloons can reach the stratosphere and collect data.
the stratosphere
指某一大气层时通常加定冠词 the。
The stratosphere lies above the troposphere.
平流层位于对流层之上。
in the stratosphere
表示位置或范围，常与 in 连用。
Most weather balloons do not stay in the stratosphere for long.
大多数气象气球不会在平流层中停留很久。
reach the stratosphere
reach 后直接接 the stratosphere 作宾语，表示到达该层。
Connections
Collocations
- in the stratosphere
- 在平流层中
- Weather balloons can drift in the stratosphere.气象气球可以在平流层中飘浮。
- enter the stratosphere
- 进入平流层
- The rocket will enter the stratosphere within three minutes.火箭将在三分钟内进入平流层。
- upper stratosphere
- 平流层上部
- Scientists study the upper stratosphere to understand climate change.科学家研究平流层上部以了解气候变化。
- lower stratosphere
- 平流层下部
- Turbulence is usually weaker in the lower stratosphere.平流层下部的湍流通常较弱。
- Earth's stratosphere
- 地球的平流层
- The ozone layer lies in Earth's stratosphere.臭氧层位于地球的平流层。
Idioms & figurative uses
Learner notes
Memory Tip
记忆：strato 联想 strata（层），sphere 球；地球裹着一层层大气球壳，平流层就是其中一层。
Context & Register
语域：neutral 常见场景：气象科学、环境新闻、科普文章 “stratosphere” 字面指大气层中的平流层，多出现在科学、地理或气象讨论中，也常见于新闻和科普文章。日常随意对话中较少使用，正式和学术场合最为自然。
Grammar Note
平流层通常使用单数形式，复数形式多用于比喻义，指最高层或尖端领域。
Pronunciation & Spelling
Words that rhyme with stratosphere (final /sfɪr/): sphere, atmosphere, hemisphere, biosphere. Useful lookalikes that do NOT rhyme: stratify /ˈstrætɪfaɪ/ (ends in /faɪ/) and stratum /ˈstreɪtəm/ (begins with /streɪ-/).
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.