Dinitrogen difluoride
[化] 二氟化二氮
🧩 词语组成解析
tetroxide[化]四氧化二氮
二氟化物
🗣️ 情景例句
There's Mother and Grandpa ...
有妈妈和祖父呢……
How much is the interest a year?
每年利息多少？
Could I have this sample free of charge?
这样品可以免费送我吗？