quadri-

例句：

1. 1.The quadrilateral is a shape with four sides.
   四边形是一种有四条边的图形。
2. 2.The quadrilateral is a shape with four sides.
   四边形是一种有四条边的图形。
3. 3. The quadrilateral is a shape with four sides.
   四边形是一种有四条边的图形。