Polyphosphazenes
[化] 含磷氮链聚合物
🗣️ 情景例句
Goodbye, thanks for inviting me. I had a lovely time.
再见，谢谢您的邀请。我度过了一段美妙的时光。
I did exercise last week.
我上星期做练习。
Just then, a man hurried to the ticket office.
正在这时，一个男子匆匆奔向售票处。