Poly(vinyl formal)
[化] 聚乙烯醇缩甲醛
🗣️ 情景例句
Stop yapping!
别瞎扯啦！
All work and no play make Jack a dull boy.
尽量学，尽情玩。
The explanation was simple but very unusual.
解释很简单，却异乎寻常。