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Francium is the densest of the Alkali Metals and also radioactive.

属中密度大的,具有

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harlemite, harlequin, harlequin opal, harlequin snake, harlequinade, Harley, Harley Street, harlot, harlotry, Harlow,

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3G, 401(K), a,

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A lump of Plutonium, which is very radioactive, is really quite warm to touch. And francium, which I think is more radioactive, is probably very warm.

一块放射性很强很暖和。我认为放射性更强可能非常暖和。

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harmfully, harmfulness, harmine, harmless, harmlessly, harmlessness, harmodotron, harmol, harmomegathus, harmomegathy,

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3G, 401(K), a,
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