onion是什么意思 n. 洋葱vt. 因洋葱使掉泪 n. the bulb of an onion plantn. bulbous plant having hollow leaves cultivated worldwide for its rounded edible bulbn. an aromatic flavorful vegetable onion的用法和例句: 1. No avocado, no onions. I hate onion. 不要鳄...