oval

a.卵形的，椭圆形的 n.卵形，椭圆形

outstanding, outstandingly, outstation, outstay, outstretched, outstrip, outturn, outvote, outward, outward(s), outwardly, outwards, outweigh, outwit, outwork, outworker, outworn, ouzel, ouzo, ova, ovarian, ovary, ovation, oven, oven-ready, ovenware, over, over and above, over and over, over there, over-, over-compensate, over-compensation, over-industrialized, over-much, over-punctural, over-react, over-reaction, over-sexed, over-simplification,