Polyvinylidene
a. [化]聚偏二乙烯的
🗣️ 情景例句
No, it's not taken.
没有 ，没人坐。
The proof of the pudding is in the eating.
空谈不如实验。（实践出真知）
One allegation often made is that noise produces mental illness.
常见的一种指责是，噪音能引起精神病。