Phosphonitryl
磷氮基
🗣️ 情景例句
I'm not only willing to help, I'm willing and able.
我不但示意帮忙，而且能够帮上忙。
This country is famous for its beautiful lakes.
这个国家以其美丽的湖泊而闻名于世。
It usually comes in February or March. Summer is often very hot.
通常在2月或3月开始。夏天很热。