shape & features

pyramid--

cube--cubic

crescent月牙

spiral螺旋

cone圆锥-conical

sphere球--spherical

rectangle-rectangular

triangle--triangular

square--square

circle--circular

cylinder圆柱--cylindical

oval椭圆--oval

curve曲线--curved

undulate波动--undulating

flat

wavy波状的

meandering蜿蜒的