Koechlinite
钼铋矿
🗣️ 情景例句
about our children's education.
对于我们孩子的教育。
Is it long way from here to the United Air Lines counter?
从这里到美国航空公司柜台有一段很远的路。
These two have travelled through the earth.
这两种波都是穿过地球而来的。