“卵形的”用英语怎么说？

英式橄榄球运动使用的是卵形的球.Rugby is played with an, egg - shaped ` ball.鸡蛋是卵形的形状的球体与浅棕色.Eggs are oval shaped spheres with a light brown color.美洲一种胡桃树的卵形的油质的坚果.The smooth , thin - shelled oval nut of this tree....