高到那個高度的數字
把那個高度借給數字用。價格、房租、薪水、成績本來在地面，現在被講成已經衝到雲層之上，所以聽的人接收到的不只是「高」，還有「高得不合理」。
adjective · C1
Extremely high — used about prices, costs, rents, salaries, numbers, or a level of success that has gone far past what people expect as normal.
高得離譜
核心畫面
Think of the layer of air that sits above the clouds and above all the weather we feel — the height where the sky looks dark blue and a big plane is still climbing. That height is the whole word. Point it at the air and you get the science meaning; point it at a price and you get a number that has gone up there too.
可以想成雲層之上、連天氣都管不到的那一層空氣。在那個高度，天空看起來是深藍色，大飛機還在往上爬。整個字就是這個高度。…更多收起
可以想成雲層之上、連天氣都管不到的那一層空氣。在那個高度，天空看起來是深藍色，大飛機還在往上爬。整個字就是這個高度。把它指向空氣，就是科學上的「平流層的」。把它指向價格或成績，就是「已經飛到那個高度」的數字。From the word’s history
The source gives stratosphere + -ic, where -ic turns a noun into an adjective meaning 'of or belonging to'. So the word is built directly on the name of that layer of air.
來源資料寫這個字是 stratosphere 加上字尾 -ic，-ic 的作用是把名詞變成形容詞，意思是「屬於…的」。所以這個字從頭到尾都建在那一層空氣的名字上。
Wiktionary entry for stratospheric, etymology: “From stratosphere + -ic (suffix meaning ‘of or pertaining to’ forming adjectives from nouns).” (packet ref kaikki:3f6f69a190036ae4:1147541812:13706)
From the picture
Also in this word
adjective · C1
Relating to the stratosphere, the layer of air high above the Earth that lies above the clouds and ordinary weather. It is used before a noun.
平流層的