onion

洋蔥、蔥頭

She chopped an onion and fried it with garlic.

她切了一顆洋蔥，和蒜頭一起下鍋炒。

洋蔥指植物

We planted onions along the edge of the vegetable garden.

我們沿著菜園邊種了一排洋蔥。

內行、在行口語、舊式

Ask the old mechanic instead; he really knows his onions.

去問那位老技師吧，他真的很內行。