Polyacetylvinylamine
[化] 聚乙酰氨基乙烯
🗣️ 情景例句
Well, it's too bad that you have to go.
真遗憾，你要走了。
Were it left to me to decide whether we should have a city without bikes or one without cars.
如果让我来决定我们要一个没有自行车的城市，还是要一个没的汽车的城市。
How do you do ? Are you having a nice time in Beijing?
你好！你在北京玩得愉快吗？