IRON low

低铁

iron blue───[颜料]铁蓝

iron lung───铁肺（人工呼吸器的一种）

iron mold───锈痕；金属型

inflow───n.流入；流入物；岭量；vi.流入；货币回笼

iron age───铁器时代

iron hat───铁帽

iron man───（钢）铁人；钢铁侠；铁甲奇侠

iron men───（钢）铁人；钢铁侠；铁甲奇侠

iron ore───[矿物]铁矿石；铁矿砂

They also require trace amounts of iron which limits phytoplankton growth in large areas of the ocean because iron concentrations are very low.───它们还需要微量的铁，由于海洋中铁的含量非常低，限制了浮游植物大面积的生长。

Low iron levels in the blood can cause severe fatigue.───血液中铁含量低会导致严重的疲劳。

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