Polyphosphazenes
[化] 含磷氮链聚合物
🗣️ 情景例句
That's a neat idea.
这是个好主意。
An evening red and a morning grey, is a sign of a fair day.
晚霞红如火，晓色青如灰，定是晴朗天。
Why don't you come a little earlier? About a quarter to.OK?
45分左右来，好吗？