Polyarylsulfone
[化] 聚芳砜
🗣️ 情景例句
There's saying, East and West, Cantonese Food is Best.
有句谚语说的是“食在广州”。
What's matter with you?
你有什么问题吗？
Let us do it by ourselves，will you?
我们自己做这件事，可以吗？