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
You'll never guess what happened the other day!
你永远也猜不到前几天发生什么事了！
I'm about ready.
我差不多准备好了。
But this is not a business that can be undertaken in a day or swiftly improvised by a mere command of the will.
但这并非一日之功，也不是单凭意志一蹴而就的事。