Inalterable
a. 不能变更的
🗣️ 情景例句
I want to buy an engagement ring for my fiancée.
我想为我的未婚妻买一枚订婚戒指。
How many feet are you going to use?
你要用几英尺？
Not at all, dear. It was a pleasure.
不必客气，亲爱的。这样我很高兴。