Polyvinylether
[化] 聚乙烯醚
🗣️ 情景例句
One step at a time.
做事要一步一步来。
My cousin is a member of a flying club, He seem private flying.
我的表兄是一个飞行俱乐部成员，他似乎很喜欢飞行。
Yes, I have. He's in Sydney, Australia.
有，我有。他在澳大利亚的悉尼。