freehand
adj. (绘画不借助工具)徒手画的
adv. (绘画不借助工具)徒手画地
例句
The themes can be figures, landscapes, flowers and birds, and the techniques can be divided into figurative painting and freehand painting.
题材可分人物、山水、花鸟等,技法可分具象和写意。
Ideogramic also allows freehand drawings on diagrams.
Ideogramic还允许在图上进行徒手画。
In other parts of the painting, Mondrian clearly painted freehand, with no paper to guide him.
在这幅画的其他部分,蒙德里安显然是用徒手画的,完全没有用纸条引导。