Phosphoferrite
铁磷锰矿
🗣️ 情景例句
We have strict procedure around here and we expect all of our staff to follow it.
我们这儿有非常严格的工作程序，希望全体员工遵守。
People usually stay out very late on New Year's Eve.
新年夜，人们通常都出去到很晚。
That's the man I told you about. Remember?
这就是我跟你说过的那个人。还记得吗？