【形状词汇】

圆形circle;半圆semi-circle;方形square;三角形triangle;长方形rectangle;菱形diamond;五边形pentagon;六边形hexagon;七边形heptagon;圆锥形cone;圆柱形cylinder;梯形trapezoid;平行四边形parallelogram;金字塔形pyramid;椭圆形oval;月牙形crescent;Z字形zigzag