Poly(vinyl formal)
[化] 聚乙烯醇缩甲醛
🗣️ 情景例句
When I first graduated from college.
那时我刚从大学毕业。
Seriously, thank you all for coming and taking part in our camp.
说真的，谢谢你们来加入我们的野营。
I felt sort of ill.
我感觉有点不适。