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最近,周长达27公里的世界上最大的强子对撞机在法国与瑞士边界地下100米深处开始工作。这台对撞机非常昂贵,造价高达80亿美元。造这么大又这么贵的东西,干什么呢?
Recently, the world's largest Hadron Collider, 27 kilometers in circumference, started its operation 100 meters underground under the border between France and Switzerland. This collider is very expensive and cost as much as $ 8 billion. What made so big and expensive?