The noun 'stratosphere' refers to a layer of the Earth's atmosphere, or metaphorically, the highest level or a difficult field of study.
名词 'stratosphere' 指的是大气层中的平流层，也比喻意义上指最上层或艰深的领域。
| 单词 | stratosphere |
|---|---|
| 音标 | [ˈstrætəsfɪə(r)] [ˈstrætəsfɪr] |
| 释义 | n.["[气]平流层，同温层","最上层，最高栏","艰深的学科领域"] |
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