Davidite
铀钛磁铁矿, 铈铀钛铁矿
🗣️ 情景例句
I earned this, and I'm going to enjoy it.
我辛苦赢得的 我要去享受它。
Wisdom is a good purchase though we pay dear for it .
为了求知识，代价虽高也值得。
I don't think this is a standard size.
我看这不是标准尺寸吧？