Johnstrupite
氟硅铈矿
🗣️ 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。
Lack of knowledge is darker than night.
没有知识比黑夜还要黑。
We have lunch in the middle of the day.
我们中午吃饭。