Polysulfone
[化] 聚砜; 聚砜类
🗣️ 情景例句
Oh, how do you do, Xiao Fu. This is Mary.
哦，你好，小付。我是Mary。
Cry with one eye and laugh with the other.
口不应心。
I'm sorry, but I have to cancel out luncheon appointment.
真抱歉，不过我不得不取消我们午餐的约会。