1. A planar surface of a geometric solid. 
   表面几何图形的多面体的表面
2. a woman's undergarment worn to give shape to the contours of the body. 
   女性塑造体型的一种内衣。
3. A form of gem cut marked by a flat base and a faceted, hemispheric upper surface. 
   玫瑰款一种底部平展且上表面呈半球状的多面体宝石款式
4. a polyhedron some of whose plane sections are concave polygons. 
   有些平面部分是凹型多边形的多面体。
5. a polyhedron any plane section of which is a convex polygon. 
   各个平面部分是凸型多边形的多面体。

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