We crossed a small iron bridge over a meandering stream.

我们穿过了蜿蜒小溪上的一座小铁桥。

《柯林斯英汉双解大词典》

Establishments projects of tourism: iron chain bridge above the canyon, whirlybird tour project, water amusement, and geographic museum of glacier relics.

旅游建设项目：大峡谷铁链桥、直升飞机旅游项目、水上游乐项目和冰川遗迹地质博物馆。

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In Sichuan, soldiers spent a hard time creeping across Luding Chain Bridge, which was made up of 13 iron chains, in the middle of gun fire.

在四川，士兵们在炮火中艰难地爬过由13条铁链组成的泸定铁桥。

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So you pick a better material like iron and steel, that makes a better bridge, we know that now because we have experience with bridges, but still your bridge might fail.

你选择了钢铁作为材料,来造了一座更好的桥,我们现在能够明晰这一点,是因为在造桥这件事上我们现在很有经验,但即使是我们现在造的桥也仍然会倒塌

耶鲁公开课 - 生物医学工程探索课程节选

On the road back to Rio, we stop underneath a spectacular old iron railway bridge - "the first curved iron bridge in the world, " Mauricio informs me, with some pride.

BBC: Rio +20: Joining the ecological dots

The plans will ease congestion around the Iron Bridge - which is a notorious accident blackspot.

BBC: The iron bridge on Goss Moor

The world's first iron bridge was built there in 1779 by Abraham Darby III.

BBC: Ironbridge Gorge gets ?12m government grant