In order to find out the diggings of gold and rare element, then you get the stone samples?

为了找金矿和稀有物质矿，你们才去找石头样品的吧？

youdao

In order to find out the diggings of gold and rare element, then you get the stone samples?

为了找金矿和稀有物质矿，你们才去找石头样品的吧？

youdao