Difluorophosphoric acid
[机] 二氟基磷酸
🧩 词语组成解析
🗣️ 情景例句
Why is that necessary?
为什么有此必要
That's a liberal point of view.
那是一个开明的观点。
It's nothing to be surprised about.
这事不值得大惊小怪。