矿山

例句：

1. 1. The mine is located in the mountains.
   这个矿位于山区。
2. 2. Mining has been a major industry in this region for decades.
   几十年来，采矿业一直是该地区的主要产业。
3. 3. The miners are working long hours to ensure the safety of the mine.
   矿工们正在努力工作，以确保矿井的安全。