Pittinite
脂铅铀矿
🗣️ 情景例句
By this time next week we shall be in London.
下星期的这个时间我们将在伦敦。
The more the well is used, the more water it gives.
井水越打越多。
Let us suppose that you are preparing a meal and keeping an eye on the baby at the same time.
假设你在做饭，同时又在照看孩子。