切開身體來研究
核心畫面的原型：真的有一把刀，沿著界線把身體打開。
verb · B2
To cut open the body of a dead animal, person, or plant and take it apart carefully, so that you can look inside and learn how it is built.
解剖
核心畫面
Picture something whole being opened along the lines where its parts already meet, and then laid out piece by piece so that each one can be seen on its own. The blade follows the joins; it does not hack. When the work is done, nothing is hidden inside any more — you can see what was attached to what. That is the picture the word carries, whether the thing being opened is a fish, an argument, or a stretch of .
dissect 可以想成把一個整體沿著它本來就有的界線打開，然後一塊一塊攤出來，讓每個部分都能單獨被看見。刀走的是接…更多收起
dissect 可以想成把一個整體沿著它本來就有的界線打開，然後一塊一塊攤出來，讓每個部分都能單獨被看見。刀走的是接縫，不是亂切。做完之後，裡面沒有東西是藏著的：誰連著誰，一眼就看得出來。被打開的可以是一條魚，也可以是一段論點，甚至是一片田。From the word’s history
Wiktionary gives Latin dissectus, the past participle of dissecare 'to cut asunder, cut up', from dis- 'asunder' + secare 'to cut' — the same secare that sits inside section. The core image is almost the literal sense: cut into separate parts.
字源上，dissect 借自拉丁文 dissecare（切開），由 dis-（分開）加 secare（切）組成；同一個 secare 也留在 section 裡面。所以核心畫面幾乎就是字面意思——切成分開的幾塊。
Wiktionary, 'dissect': 'Borrowed from Latin dissectus past participle of dissecare (to cut asunder, cut up), from dis- (asunder) + secare (to cut); see section.' — packet source_ref kaikki:3f6f69a190036ae4:706189542
Three branches
把想法拆開來看
刀不見了，動作留著：拆的對象變成看不見、只能想的東西。
verb · B2
To go through something such as an idea, a book, a game, or a performance in close detail, breaking it into parts and looking at each one, in order to understand how it works or why it turned out as it did.
細細分析、剖析
把土地切成小塊
這一次拿刀的不是人：橫過去的河、路、圍牆自己就是那道切線。
verb · C1
Used about rivers, roads, valleys, or walls that run across an area of land and cut it into several smaller pieces.
切割（土地）