高處的那條窄路
這一族就是核心畫面本身：為了構得到高處的東西而架的窄走道。
noun · B2
A narrow path high above the ground, built so that people can walk along it to reach or work on parts of a building, a bridge, a ship or a stage.
高空窄道／檢修走道
核心畫面
Think of a cat crossing a wall: the path is barely a hand wide, it is high above the ground, and the cat walks it without a wobble. A catwalk is a path built like that for people — long, narrow, raised, one person wide, with everything else far below. Under a bridge or above a theatre stage it stays exactly that, a working path to somewhere you could not otherwise reach. In a fashion show the same strip is kept but the purpose flips: now the height and the narrowness are there so that everyone can see the person on it.
可以想成一隻貓走在牆頭上：路只有一個手掌寬，離地面很高，貓卻走得穩穩的。catwalk 就是照這個樣子替人蓋出來的路…更多收起
可以想成一隻貓走在牆頭上：路只有一個手掌寬，離地面很高，貓卻走得穩穩的。catwalk 就是照這個樣子替人蓋出來的路——又長又窄、架在高處、寬度只夠一個人，其他東西都在腳下很遠的地方。在橋下或舞台上方，它就是這樣一條通往別處的工作走道。到了時裝秀上，形狀沒變，目的翻了過來：高和窄不再是為了通行，而是為了讓所有人都看見上面那個人。From the word’s history
Wiktionary gives the word as cat + walk — a path of the kind a cat can manage. That reading sits under the narrow raised walkway directly, and the fashion stage borrows the same shape.
Wiktionary 把這個字拆成 cat（貓）+ walk（走道），也就是「貓走得過的那種路」。這個拆法直接對上高處窄道的意思，而時裝秀的台子只是借用了同一個形狀。
Wiktionary, entry 'catwalk' (kaikki extract, source_ref kaikki:3f6f69a190036ae4:1256899619): 'From cat + walk.'
Two branches
同樣一條窄台，改成給人看
形狀完全沿用核心畫面——長、窄、架高——但用途反過來：原本是為了讓人走到構不著的地方，現在是為了讓兩側的觀眾把台上的人看個清楚。
noun · B2
A long narrow raised stage that models walk along at a fashion show, so that everyone in the room can see the clothes clearly.
伸展台