名詞 onion:

1. edible bulb of an onion plant
2. bulbous plant having hollow leaves cultivated worldwide for its rounded edible bulb
   同義詞：onion plant, Allium cepa
3. an aromatic flavorful bulb

1. Onion does not agree with me.
   洋蔥不適合我的胃口。
2. He is really a good onion.
   他真是個(gè)大好人。
3. I don't like the flavor of onion.
   我不喜歡洋蔥的味道。
4. I don't like the flavour of onion.
   我不喜歡洋蔥的味道。
5. I don't like the taste of onion.
   我不喜歡洋蔥的味道。

on.ion

n.（名詞）
A bulbous plant(Allium cepa) cultivated worldwide as a vegetable.
洋蔥：一種球莖狀植物（洋蔥 蔥屬） ，作為一種蔬菜在世界各地被廣泛種植
The rounded, edible bulb of this plant, composed of fleshy, tight, concentric leaf bases having a pungent odor and taste.
洋蔥頭：這種植物的鱗莖，由緊密同心圓組成；有刺鼻的氣味和味道

來源：
Middle English oinyon
中古英語(yǔ) oinyon
from Old French oignon
源自 古法語(yǔ) oignon
from Latin uniô uniôn-
源自 拉丁語(yǔ) uniô uniôn-