Polysulfone
[化] 聚砜; 聚砜类
🗣️ 情景例句
How do you do?
你好。
I will die before I'll eat that carrot.
如果要我吃胡萝卜，我宁愿去死。
These days, advertisers not only offer free samples, but free cars, free houses, and free trips round the world as well.
目前，做广告的人不仅提供免费样品，而且还提供免费汽车，免费住房，免费周游世界。