Molybdena
氧化钼
🗣️ 情景例句
Mrs. Montefiore told me that
Montefiore太太告诉我
The country is rich in natural resources.It has mineral deposits.
这个国家有丰富自然的资源。它有很多的矿床。
I don't know.I've already had my holiday this year.
我不知道。今年我已度过假了。