1. This animal's mouth is square-shaped.
这个动物的嘴是方形的。
2. The shape determines the appearance of an object.
形状决定了物体的外观。
3. His face is rectangular.
他的脸是长方形的。
4. This animal's mouth is shaped like a smile.
这个动物的嘴形状像微笑。
5. Shapes can be round, square, or triangular.
形状可以是圆形、方形或三角形。