Fluoborite
氟硼镁石
🗣️ 情景例句
Did you forget something?
你是否忘了什么东西吗？
Please make yourself at home.
请随意一点。
I joined in the march and we were marching peacefully along and then the police came up.
我参加了游行，我们以和平的方式往前行进，这时警察突然来了。