granatonine

例句：

1. 1. The gold-silver mine is the largest in the world.
   这个金矿是世界上最大的。
2. 2. The mineral was found to be a rare and valuable resource.
   这种矿物被发现是一种稀有且有价值的资源。
3. 3.The company's research department is working on developing new gold-silver mining techniques.
   该公司的研究部门正在开发新的金银开采技术。