outline of figure

例句：

1. 1. The artist drew a detailed sketch of the building's outline.
   艺术家绘制了这座建筑的详细草图。
2. 2.The team has outlined their strategy for the upcoming competition.
   团队已经概述了他们即将参加比赛的策略。
3. 3. The teacher gave us an outline of the lesson before we started.
   老师在我们开始之前给我们概述了这节课的内容。