Pso
abbr. polysulfone 聚[化]聚砜
🗣️ 情景例句
No, thank you.
不用 谢谢你。
He has bought 10 tractors for the village.
他为村里买了10台拖拉机。
I repeated my question several times and at last he understood.
我把问话重复了很多遍。他终于听懂了。