Polysulfone
[化] 聚砜; 聚砜类
🗣️ 情景例句
Thank you. Would you like something to drink? A cup of coffee?
谢谢。你想喝点儿什么？来杯咖啡吗？
You're not so great yourself.
你自己也没好到哪里去。
Isn't there anyone at home?
家里没有人吗？