Indefiniteness
无定性; 不定性
🗣️ 情景例句
I have no idea about fashion there days, which is why I dress so plainly.
我对现在的时装潮流一窍不通，这就是我穿得这么普通的原因。
Excuse me I don't know.
对不起我不知道。
She is standing in the front of the bus.
她站在公共汽车的前部。