Polyacid
a. 多酸的
🗣️ 情景例句
It doesn't matter. Let's wait until the next time.
没关系。下次还有机会。
I'd like two seats on today's northwest flight 7 to detroit, please.
我想订两张今天西北航空公司7班次到底特律的机票。
Yes, it was. But it's much colder today.
是的，昨天冷。但是今天更冷。