Poly(vinyl alcohol)
[化] 聚乙烯醇
🗣️ 情景例句
and how hard it is
他还说这件事很难
I had to pay three dollars for my club fee.
我付了三美元给俱乐部
Many owners of private cars are going to offer 'free rides' to people on their way to work.
很多私人汽车的车主正准备为乘车上班的人们提供“免费乘车”的服务，