Translation of "Oval" in Chinese

Since it is the oval track, the distance between the planets and the sun differs at times.

由於軌道是橢圓形的，行星和太陽之間的距離不會總是相同。

I tried to draw a stick figure, but I failed when I started to draw the circle. It looked like a loop-sided oval.

我试图画条纹图形，但是当我画圆的时候我失败了。它看起来像一个椭圆的圆环。