Teallite
叶硫锡铅矿
🗣️ 情景例句
We're not?
不在这里？
In the United States ,there are many factories for making cloth.
在美国，有许多造布的工厂 。
Every day he does the same thing. Why doesn't he use the lift for the last three floors?
每天他都这样度过。为什么上最后3层楼他不用电梯呢？