Polypak
苯乙烯、二乙烯苯共聚物
🗣️ 情景例句
He ran the drugstore
他经营药房
You'll cut yourself, if you don't take care.
你不专心的话，就会割到你自己。
we'll be poor again.What'll we do then?
我们又会变穷的。那时我们怎么办呢？