Davidite
铀钛磁铁矿, 铈铀钛铁矿
🗣️ 情景例句
I'd like you to be the photo editor of the magazine.
我希望你能做杂志的摄影编辑。
Would you please open the door for me?
请你帮忙开个门好吗？
The real dividing line between continents and oceans occurs at the foot of a steeper slope.
大陆和海洋的真正分界线是在陡坡脚大陆架慢坡