Poly(oxyphenylene sulfone)
[化] 聚苯醚砜
🗣️ 情景例句
Yes, what can I do for you?
是的，我能为您效劳吗？
Has this seat number started boarding?
这个座位号已开始登机了吗？
The cry had certainly come form one of the chimneys, but as there were so many of them, the fire fighters could not be certain which one it was.
喊叫声肯定是从烟囱里传出来的，然而，因为烟囱太多，消防队员无法确定到底是哪一个。