Pso
abbr. polysulfone 聚[化]聚砜
🗣️ 情景例句
Havefun!
开心点。
Eat at pleasure, drink with measure.
随意吃饭，适度饮酒。
They teach us Chinese and we teach them English. Please write soon!
他们教我们汉语，我们教他们英语。请赶快回信。