n. the line that appears to bound an objectn. a sketchy summary of the main points of an argument or theoryn. a schematic or preliminary plan
n. 大纲, 轮廓, 概要vt. 描画轮廓, 描述要点n. 大纲, 分级, 轮廓[计] 大纲, 分级, 轮廓