Fluophosphate
n. =fluorophosphate
🗣️ 情景例句
I never slept.
我总睡不着。
Come to me if you're in any difficulty.
有困难来找我。
It's about a time when there were black slaves in North America. It's about their fight for freedom.
（它）讲的是有一段时期，北美洲存在黑奴。影片讲述他们为自由而斗争的情况。