cylinder
/ˈsɪlɪndər/
a shape, object, or container with circular ends and long straight sides
圆柱体；圆筒
cone
/koʊn/
圆锥体
vertex
/ˈvɜːrteks/
the point where two lines meet to form an angle, especially the point of a triangle
（两线相交成角时的）交点；（尤指三角形的）顶点
cube
/kjuːb/
a solid object with six equal square sides
edge
the outside limit of an object, a surface or an area; the part furthest from the centre
边；边缘；边线；边沿
face
one of the outside surfaces of an object or building
sphere
/sfɪr/
a solid figure that is completely round, with every point on its surface at an equal distance from the centre
a ball shape
pyramid
/ˈpɪrəmɪd/
a solid shape with a square or triangular base and sloping sides that meet in a point at the top
锥体；棱锥体
prism
/ˈprɪzəm/
a solid object with matching ends and several sides which are the same width all the way up
棱柱体
tetrahedron
/ˌtetrəˈhedrən/
a solid shape with four flat sides that are triangles
四面体
octahedron
/ˌɑːktəˈhedrən/
a solid figure with eight flat sides, especially one whose sides are eight equal triangles
八面体；正八面体
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