Poly(oxyphenylene sulfone)
[化] 聚苯醚砜
🗣️ 情景例句
I can't figure out why he quit his job.
我不能理解他为什么要辞职。
Our own actions are our security,not others' judgements.
我们的行为是自己的保证，并不是旁人的鉴定。
Ducks know how to swim when they are born.
鸭子天生会游泳