Indefinitive
a. 非决定性的, 不明确的
🗣️ 情景例句
We'd prefer a credit card, if you have one.
如果你有信用卡，我们较喜欢信用卡。
The maintaining of one vice costs more than ten virtues.
保持一件坏事的代价超过十件好事。
What's the number of your car?
您的汽车牌号是多少？