星期一，一列装载着核弹级铀材料的专列到达了一处俄罗斯的安全设施。这些核材料来自波兰的一个研究用的反应堆，运送它们，是为了确保世界各地的危险的放射性物质安全的努力的一部分。
A shipment of bomb-grade uranium arrived at a secure facility in Russia on Monday, sent from a research reactor in Poland as part of a race to secure dangerous radioactive material around the world.
美国和俄罗斯签署协议，计划处置68吨武器级放射性钚，将其做为民用核反应堆的燃料。
The United States and Russia signed an agreement to dispose of sixty-eight tons of weapons-grade plutonium. They plan to use the plutonium as fuel for civilian nuclear reactors.
三月，日本福岛的发生了9.0级毁灭性的地震和巨大的海啸，之后该地的核反应堆中的三个处在了“部分熔融”的情况。
And "partial meltdown" was the case for three Japan reactors following the devastating earthquake and tsunami in March.
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