Polysulfone
[化] 聚砜; 聚砜类
🗣️ 情景例句
What do you do at Universe Toy Company?
你在宇宙玩具公司做什么工作？
He has not come in yet.
他还没有来。
Be careful. It's dangerous. You're too high.
小心。危险！你上得太高了！