把界線畫出來
最貼近字面的一支：真的有一條線，把兩邊分開。
verb · C1
To mark or show clearly where the line between two areas falls, or where one person's part ends and another person's part begins.
劃定界線
核心畫面
Someone goes round the edge of a thing and makes that edge visible: a brush round a shape, white paint down the middle of a yard, a dotted line on a map. Before, the edge was there but nobody could see it. After, everyone can point at it. The tool changes — a pen, a wall, a paragraph in a contract — but the action is always the same: bring the border into view.
可以想成有人沿著一樣東西的邊走一圈，把那條邊變得看得見。可能是一支筆描出輪廓，可能是院子中間刷的一道白漆，也可能是地…更多收起
可以想成有人沿著一樣東西的邊走一圈，把那條邊變得看得見。可能是一支筆描出輪廓，可能是院子中間刷的一道白漆，也可能是地圖上的虛線。在那之前，邊界其實就在那裡，只是沒人指得出來；在那之後，誰都能指。工具會換——筆、牆、合約裡的一段話——但動作一直是同一個：把界線畫出來給人看。From the word’s history
Borrowed in the mid-sixteenth century from Latin dēlīneāre, which is dē- plus līnea, a line. The word is first attested in English in 1559. The line in the Latin is the line in the picture.
這個字大約在一五五九年進入英文，借自拉丁文 dēlīneāre，由 dē- 加上 līnea（線）組成。拉丁文裡的那條線，就是今天畫面裡的那條線。
Wiktionary entry for delineate (packet source_ref kaikki:3f6f69a190036ae4:130242428:10553): “First attested in 1559; borrowed from Latin dēlīneātus … from dē- + līnea (line)”.
Two branches
用線條或文字描出形狀
同樣是描邊，只是這次描的不是兩塊地之間，而是一件事情本身的輪廓；工具換成筆或文字。
verb · C1
To describe or draw something in careful detail, so that other people can see clearly what it is, what it includes and where it stops.
詳細說明；勾勒