Art【艺术】
with obj.
1- modify (a painting or colour) by applying a very thin coat of opaque paint to give a softer or duller effect（涂上薄薄一层不透明颜料）使（绘画, 色彩）变柔和。
1.1
- modify (a drawing) in a similar way with light shading in pencil or charcoal用铅笔（或炭笔）的淡阴影使（图画）色彩变得柔和。
1
- a thin, opaque coat of paint or layer of shading applied to give a softer or duller effect（为了使色彩变得柔和暗淡而）涂上的薄薄一层不透明颜料（或抹上的一层阴影）。
1.1
- the effect produced by adding such a coat or layer色彩淡化效果。
词源
late 17th cent. (as a verb)：perhaps a frequentative of the verb SCUM.