Poly(vinyl formal)
[化] 聚乙烯醇缩甲醛
🗣️ 情景例句
Language should not be a barrier to love.
语言不应该是爱情的障碍。
Too much spoils, too little is nothing.
过多反坏事，太少不济时。
Good morning. I am. Everyone is here. No one is away.
早上好。我值日。大家都来了。没有人缺席。