elliptical spike

例句：

1. 1. The elliptical orbit of the planets is fascinating to study.
   行星的椭圆形轨道令人着迷。
2. 2.The elliptical shape of the galaxy suggests that it was formed by a merger.
   银河系的椭圆形状表明它是由一次合并形成的。
3. 3. The elliptical motion of the moon around the earth is well-known.
   月亮围绕地球的椭圆运动是众所周知的。