Polyether sulphone (pes)
[化] 聚醚砜; 聚苯醚砜; 聚芳醚砜
🧩 词语组成解析
n. [化]聚醚,多醚
n. [化]砜
🗣️ 情景例句
Where do you usually spend your weekends?
你通常在哪度过你的周末？
What are you doing?
你在干什么？
I suddenly felt very worried, but could not say anything.
我突然非常着急起来，但却什么也说不出来。