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1
英语
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1.1
名词
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Wt
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wuu
/
hydrogen
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From Wikimedia Incubator
<
Wt
|
wuu
Wt
>
wuu
>
hydrogen
英语
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]
名词
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]
hydrogen
氢
氢气
Hydrogen is flammable.
氢气是易燃个。
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