Davidite
铀钛磁铁矿, 铈铀钛铁矿
🗣️ 情景例句
I studied English in school.
我是在学校里学的英语。
Well, I think it's time we get back to business.
哦，我认为我们该回到正题上了。
Who but Jack would do such a thing?
除了杰克谁会做这种事呢？