miner nystagmus

例句：

1. 1. The mine is located in the mountains.
   矿井位于山区。
2. 2. He was a skilled miner who had worked for many years.
   他是一位熟练的矿工，已经工作了很多年。
3. 3. Mining has become a major industry in the region.
   采矿业已成为该地区的主要产业。