Borofluoric acid
[机] 氟硼酸
🧩 词语组成解析
🗣️ 情景例句
It's not easy, but what is?
这不容易， 但什么事又容易了？
The price of this model of cassette-player is 2500 Belgian francs at today's rate of exchange.
这个型号的录音机，按今天汇率，每台2500比利时法郎。
Experiments have proved that children can be instructed in swimming at a very early age.
实验证明，儿童在很小的时候就可以开始学习游泳。