iron，ferrum(Fe)，hard，unshakable，[电影]Hierro；

[例句] 这张图片中的铁艺藤椅要价125英镑。 The rattan and wrought-iron chair pictured here costs £125.

[例句] 工厂里四处都立有铁柱支撑着房顶。 Mills have iron pillars all over the place holding up the roof.