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它们以固体形式匿藏深海。它们是未来最有开发价值的清洁能源,而且储量惊人。但是,它们还可能危害地球,毁灭人类——
They hide the deep ocean in solid form. They are the cleanest and most promising clean energy source of the future with amazing reserves. However, they may also endanger the Earth and destroy human beings -