Stratosphere
n. 同温层, 最上层, 尖端的学科领域\\n[医] 同温层, 平流层
📖 牛津释义
stratosphere
n[sing]
layer of the earth's atmosphere between about 10 and 60 kilometres above the surface of the earth 平流层, 同温层（距地表约10至60公里之间的大气层）. Cf 参看 ionosphere.
🗣️ 情景例句
Sometimes he's very sad.
他有时很忧悒。
Whom will you write to?
你将写信给谁？
Above the surface of the water, the towers rise to a height of nearly 700 feet.
塔身高出水面将近700英尺。