Jiningite
褐铀钍矿, 集宁石
🗣️ 情景例句
Well, for one thing, he's my sister's boyfriend. Ann talks about Jack all the time.
首先，他是我妹妹的男朋友。安整天就是杰克长杰克短的。
Where are the stairs?
楼梯在哪里呢？
I would like to ask you a favor.
我可以提出一个要求吗？