As it is made of iron and used for horses, horseshoes are also linked to strength and power.

而马蹄铁由于是用在马身上的铁制品，因而又被人们看作与力量和权力有关。

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Third, its high mass probably means it is made of iron, an appropriate material for a planet named after a divine Smith.

第三，新星的高重量值可能意味着它由铁组成，正好适合用火神并且是一名铁匠来命名。

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This particular bridge is of great historic importance, as it is the world's first bridge made of iron.

这张照片里的桥很有历史意义，因为它是世界上第一座完全用钢铁建造的桥梁。

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The planet orbiting Kepler 10, by contrast, has an orbital period of a mere 20 hours and is so dense that it is probably made of iron.

ECONOMIST: The search for other Earths is hotting up

It is hard to imagine the "Iron Lady" stomaching the kind of compromises her successors at Number Ten made in the pursuit of peace.

BBC: Margaret Thatcher: Heated debate over NI legacy