椭圆形

例句：

1. 1. The ellipse in the sky is a beautiful sight.
   天空中的椭圆是一幅美丽的景色。
2. 2. The shape of the ellipse is determined by its major and minor axes.
   椭圆的形状由其长轴和短轴决定。
3. 3.The ellipse represents the path of an object as it moves through space.
   椭圆代表物体在空间中移动的路径。