on.ion
n.(名词)A bulbous plant(Allium cepa) cultivated worldwide as a vegetable. 洋葱:一种球茎状植物(洋葱 葱属) ,作为一种蔬菜在世界各地被广泛种植 The rounded, edible bulb of this plant, composed of fleshy, tight, concentric leaf bases having a pungent odor and taste.洋葱头:这种植物的鳞茎,由紧密同心圆组成;有刺鼻的气味和味道
来源:Middle English oinyon 中古英语 oinyon from Old French oignon 源自 古法语 oignon from Latin uniô uniôn- 源自 拉丁语 uniô uniôn-