Oxyfluoride
氟氧化物
🗣️ 情景例句
It is! She's having pains a minute apart!
是啊。她隔一分钟就会痛呀。
If things were to be done twice all would be wise.
事事倘能做两次，人人都可称明智。
Have you ever driven a BMW?
你有没有开过“宝马”？