词汇与表达：smear

smear

The children had smeared mud on the walls.  [url=][/url]  

那几个孩子往墙上抹了泥巴。  

mark stain streak speck blot smear spot
These are all words for a small area of dirt or another substance on a surface. 以上各词均指污点、斑点、污迹。

与之相近的词有rub 摩擦
Rub the surface smooth.
将表面擦光。