Fluoboric acid
[化] 氟硼酸
🧩 词语组成解析
🗣️ 情景例句
how would you do it?
你怎么说？
He came to give us a talk yesterday.
他昨天给我们作了一次演讲。
He gets into the lift, and goes up to the twelfth floor.
他进入电梯，然后升至第12层。