outlined 是 outline 的過去式、過去分詞

outline

KK [ˋaʊtˏlaɪn] /ˈaʊtˌlaɪn/

out- 向外+line 線條→外圍的線條展開

字面：外圍的線條

只畫出外圍的線條，即輪廓；引申為只列出要點的大綱。

名詞

1
大綱、概要、要點
She sent me an outline of her talk before the meeting.
她在會議前把演講的大綱寄給我。
2
輪廓、外形
We could just see the outline of the mountains through the fog.
我們在霧中只看得見山的輪廓。
3
草案、初步計畫
The committee approved a rough outline for the new park.
委員會通過了新公園的初步計畫。

1
概述、扼要說明
The manager outlined the company's plans for next year.
經理概述了公司明年的計畫。
2
描出輪廓、勾勒
Tall buildings were outlined against the evening sky.
高樓在暮色的天空下映出輪廓。