椭圆形

1. 壳内的封闭在椭圆形角质壳内的。用于一虫蛹
   Enclosed in an oval, horny case. Used of an insect pupa.
2. 球场很大，呈椭圆形。
   The playing-field is a large oval.
3. 彗星象行星一样绕太阳运转，然而其轨道呈狭长的椭圆形。
   Comets move around the sun like planets, but in long oval course.

圆形的英语翻译：