Polyacid
a. 多酸的
🗣️ 情景例句
I'm looking for a sports car.
我想买一辆跑车。
I turned off when they started talking about computers.
当他们谈论计算机时，我失去了兴趣。
He has asked to be introduced to the pianist.
他要求会见这位钢琴家。