Polyvinylidene
a. [化]聚偏二乙烯的
🗣️ 情景例句
There's nothing more joyous than the arrival of a new baby.
没有任何事能比新生儿的到来更令人喜悦的了。
How did you recognize him?
你是如何认识他的？
I'm fine,too. Excuse me, Miss Gao, what's this in English?
我也很好。请问，高小姐，这个用英语怎么说？