洋裝上的那一塊
這一支最貼近核心畫面：那塊上半身的布還留在洋裝上，沒有獨立成一件衣服。
noun · C1
The part of a dress that covers the top of the body, from the shoulders down to the waist. The skirt is the part below it.
（洋裝的）上身
核心畫面
You can think of bodice as the upper body drawn in cloth: a piece that starts at the shoulders, closes round the chest and back, and stops at the waist. Everything the word does follows from where that piece sits. Sometimes it is sewn into a dress, sometimes it is a garment of its own worn over a , sometimes it is worn under everything else — but it is always the same shoulders-to-waist shape.
可以想成：bodice 就是「用布做出來的上半身」。從肩膀開始，包住胸和背，到腰為止，剛好是一個人上半身的形狀。這塊…更多收起
可以想成：bodice 就是「用布做出來的上半身」。從肩膀開始，包住胸和背，到腰為止，剛好是一個人上半身的形狀。這塊布可以縫在洋裝上，成為洋裝的上身；也可以自己獨立成一件，繫在襯衫外面；還可以貼身穿在最裡面。位置從來沒變，變的只是它被當成衣服的哪一層。From the word’s history
The word comes from bodies, the plural of body, which in older English could mean the upper part of a dress. So the name already says where the piece sits.
這個字來自 bodies，也就是 body 的複數；舊英文裡 body 可以指「洋裝的上半身」。所以這個字從一開始講的就是身體那一塊的布，名字本身就把位置說清楚了。
Wiktionary entry 'bodice' (kaikki extract, source_ref kaikki:3f6f69a190036ae4:1024768048:24096): 'From bodies, plural of body (upper part of a dress).'
Two branches
自己獨立成一件的上身
同樣那塊上半身，這次被做成可以自己穿脫的衣服。差別只在它穿在哪一層：外面，或最裡面。
noun · C2
A close-fitting top with no sleeves that women wore over a blouse in earlier times, usually laced or fastened up the front. Some kinds had sleeves that could be taken off.
束身背心（舊時衣物）