A long iron chain was tied to the collar.

一条长长的铁链系在项圈上。

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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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The dog is fastened to the post by an iron chain.

那条狗用铁索拴在柱子上了。

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The rusty iron chain that double-locked the cart to the front wheels of the cycle began to squeal as he rode.

NEWYORKER: The Elephant

The fundamental model we teach MBAs for thinking about manufacturing is the value chain, a simple model that describes the value adding steps that take a low value material like iron ore and turn it into a high value product like a Ferrari Testarossa.

FORBES: Sustainable Consumption Rising on the Business Agenda