a.

1. 表面的；外表的[Z]
   a superficial burn

   表皮烧伤

2. 面的；面积的，平方的[Z]
   superficial measurements

   面积的大小

3. 粗略的，草率的
4. 肤浅的，浅薄的

adj.

1. existing or occurring at or on the surface.
2. apparent rather than actual.
3. not thorough or deep; cursory.
   ▸lacking depth of character or understanding.
4. Brit. Building  denoting a quantity of a material expressed in terms of area covered.