Fluorides
n. [无化] 氟化物, 氰化物（fluoride的复数形式）
🗣️ 情景例句
He's quiet now.
他现在很安静。
No. It only goes as far as Main Street, but you can get the Number 31 there.
不去，最远只到正街。不过你可以到那里再乘31路。
We don't have any different opinions about the contractual obligations of both parties.
就合同双方要承担的义务方面，我们没有什么意见。