Another name foran ellipse is an oval.
椭圆的另一个名字叫“卵形的”。
Planets orbit the sun in oval-shaped paths called ellipses, and the sun is slightly off to the side of the center of each ellipse.
行星绕太阳运行的轨道是近圆形的椭圆，太阳位于每个椭圆中心的附近。
Earth's orbit is not a perfect circle, but is rather an oval-shaped ellipse, like that of the orbits of all the other planets.
地球轨道不是完美的圆形，而是像其它行星的轨道一样，呈椭圆形。
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