uran

例句：

1. 1.Uranium is a rare and valuable mineral.
   铀是一种稀有且有价值的矿物。
2. 2.The atomic bombs were made from uranium.
   原子弹是由铀制成的。
3. 3. Uranium is used in nuclear power plants to generate electricity.
   铀被用于核电站以产生电力。