构图是速写的一个重要因素。

The composition of pictures is an important factor of sketches.

youdao

当我对生活感到厌倦时，我就拿出铅笔到后院去心不在焉地乱涂一个小时，试图画出看上去像树的树木速写。

When I'm bored with my life, I take my pencils out in the back yard and doodle for an hour, trying to sketch trees that look like trees.

youdao

梵高的很多信件中都有速写插图；

Sketches are embedded in many of van Gogh's letters;

youdao