Polyphosphazenes
[化] 含磷氮链聚合物
🗣️ 情景例句
I'd like you to meet my friend Nat Baker.
我来向你们介绍我的朋友Nat Baker。
An old dog will learn no new tricks.
老家夥学不出新名堂。
It's a beautiful day today.
今天天气真好。