1. 草图;略图;素描
    A sketch is a drawing that is done quickly without a lot of details. Artists often use sketches as a preparation for a more detailed painting or drawing.

    e.g. ...a sketch of a soldier by Orpen.
           奥彭所画的一幅士兵素描

2. 为…画素描
    If you sketch something, you make a quick, rough drawing of it.

    e.g. Clare and David Astor are sketching a view of far Spanish hills...
           克莱尔和戴维·阿斯特正在画远处西班牙山峦的风景素描。
    e.g. I always sketch with pen and paper.
           我总是用钢笔和纸画素描。

3. 概略描述;简述
    A sketch of a situation, person, or incident is a brief description of it without many details.

    e.g. ...thumbnail sketches of heads of state and political figures...
           对国家元首和政治人物的简略叙述
    e.g. I had a basic sketch of a plan.
           我有一个基本的计划框架。

4. 概述;简述
    If you sketch a situation or incident, you give a short description of it, including only the most important facts.

    e.g. Cross sketched the story briefly, telling the facts just as they had happened.
           克罗斯简要地叙述了事情的经过，把当时发生的情况一五一十地说了一遍。

5. (通常指喜剧节目中的)幽默短剧
    A sketch is a short humorous piece of acting, usually forming part of a comedy show.

    e.g. ...a five-minute sketch about a folk singer.
           刻画一位民歌手的 5 分钟幽默短剧

相关词组：sketch insketch out