Poly(vinyl acetal)
[化] 聚乙烯醇缩乙醛; 聚乙烯醇缩醛
🗣️ 情景例句
Smoking is harmful to your health.
吸烟有害健康。
I wept when I was born,, and every day shows why.
我生下时啼哭，后来每天的生活说明了为什么。
I've lost my ruler. Have you seen it anywhere?
我的尺子丢了。你在哪看见了吗？