Polyarylsulfone
[化] 聚芳砜
🗣️ 情景例句
Pete's full of surprises. Pete
总是出人意表。
I really appreciate your help.
我非常感谢你的帮助。
Did you leave it in water before you washed it?
在洗它之前您是不是把它泡在水里了？