Irreplaceability
n. 无法调换, 不能取代
🗣️ 情景例句
He says it always brought him good luck on the baseball team.
他说 ，当年他在棒球队时这手套总是带给他好运。
My brother is two years younger than I am.
我的兄弟比我年轻2年。
That's very nice of you.
你真是太好了。