n.擦笔（指绘画或着色用的软木笔或纸卷、皮卷）； 英英释义： TortillonA tortillon (The french name for ; or blending stump) is a cylindrical drawing tool, tapered at the ends and usually made of rolled paper, used by artists to smudge or blend marks made with charcoal, Conté crayon, p