Fluorides
n. [无化] 氟化物, 氰化物（fluoride的复数形式）
🗣️ 情景例句
I was left with nothing.
我一点儿不剩了。
Our company has agencies all over the world.
本公司在全世界各地都设有代理处。
No. I've never been to that farm before. What kinds of animals have they got?
不，我以前从来没有去过那个农场。他们有哪些种类的动物？