Polyphosphazenes
[化] 含磷氮链聚合物
🗣️ 情景例句
What was your GPA last semester?
你上个学期的平均成绩是多少？
I'm old enough to make up my own mind.
我是够年纪做自己的决定了。
Yes, do please. That's a good idea.
对，就谈这个。那是一个好主意。