Pioloform
聚乙烯醇缩醛
🗣️ 情景例句
The old library building on Chestnut Street,
Chestnut街老图书馆，
Is it yours?
它是你的吗？
He insisted on the assistant's counting the money before he left -- 30,000 pennies in all!
这些硬币加在一起共有30，000枚！