Polysulfone
[化] 聚砜; 聚砜类
🗣️ 情景例句
I enjoyed lunch, Susan.
这顿午餐真好， Susan。
It was a real pleasure for me to do it.
我很乐意这样做。
Hi, Jim! It's a long time since we met last!
你好，吉姆！从我们上次见面后已经很久了！