那把工具
這一族就是核心畫面本身：實際握在手上的那把工具。
noun · B2
A small tool for pulling the cork out of a bottle. The working part is a piece of metal twisted round and round like a spring; you turn it down into the cork and then pull the cork straight up.
（螺旋式）開瓶器
核心畫面
One way to hold corkscrew: a piece of metal wound round and round like a spring, which only grips when you turn it and only moves forward while it turns. Everything else the word does is that one piece of metal handed over to something else — its shape to hair and staircases, its motion to planes, smoke and mountain roads.
可以想成：一段像彈簧那樣一圈一圈捲起來的金屬，它要轉才咬得住，而且是一邊轉一邊往前進。這個字其他的用法，就像是把這段…更多收起
可以想成：一段像彈簧那樣一圈一圈捲起來的金屬，它要轉才咬得住，而且是一邊轉一邊往前進。這個字其他的用法，就像是把這段金屬交給別的東西——把形狀交給頭髮和樓梯，把動作交給飛機、煙和盤山的路。From the word’s history
From cork + screw, so the name is literally the screw you use on a cork.
這個字由 cork（軟木塞）和 screw（螺絲）組成，字面上就是「對付軟木塞的那根螺絲」。名字直接寫出了工具的長相，所以後來借去形容捲髮、旋轉樓梯和盤旋的動作時，讀者一聽就懂。
Wiktionary entries for corkscrew (noun, adj, verb), supplied in this packet: 'From cork + screw.'
Two branches
把形狀借出去
把核心畫面裡「捲得很緊、沿著一條線繞下去」這一點單獨抽出來，擺到名詞前面。
adjective · C1
Twisted or curled round and round in tight rings, in the shape of the metal part of a corkscrew.
螺旋狀的；捲得很緊的