Nonuniqueness
非唯一性; 不唯一
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
You really don't have anything to apologize for.
你真的没什么可道歉的。
Excuse me. What's the time, please?
对不起，请问几点了？