An elliptical track, as for racing or athletic events.
椭圆形跑道如用于比赛或运动项目的椭圆形跑道
A cylindrical surface or solid all of whose sections perpendicular to the elements are elliptical.
椭圆柱与组成要素垂直的所有圆柱形表面或柱体的部分是椭圆形的柱体
The Earth's path round the sun is elliptical.
地球绕太阳的轨道是椭圆形的。
