fermium

例句：

1. 1.The iron ore is mined from the nearby mountains.
   铁矿石从附近的山脉中开采。
2. 2. Iron is used to make many different types of tools and machines.
   铁被用来制造许多不同类型的工具和机器。
3. 3.The iron industry plays a significant role in the economy.
   钢铁工业在经济中扮演着重要角色。