铁的，含铁的铁的、有关铁的或含铁的，尤指带有二价铁或低于二价铁的相应含铁化合物。

Of, relating to, or containing iron, especially with a valence of2 or a valence lower than in a corresponding ferric compound.

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X物质又将它的电子转移给一种含铁的蛋白质，称为铁氧还蛋白。

Substance X, in turn, donates its electron to an iron-containing protein called ferredoxin.

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而血液中含铁量过低容易引起严重的疲劳感，为了摄取适量的铁，试一下野牛。

And low iron levels in blood can cause severe fatigue. To get a good dose of iron, try bison.

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