Hydrogen is highly explosive.

氢极易爆炸。

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The gas is highly explosive.

这种气体极易爆炸。

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They are highly flammable and explosive and are shipped in steel cylinders.

它们具有高度可燃性和爆炸性，用钢瓶发货。

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They are highly flammable and explosive and are shipped in steel cylinders.

它们具有高度可燃性和爆炸性，用钢瓶发货。

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