The materials from e-waste include iron, copper, gold, silver and aluminum.

电子垃圾中的材料包括铁、铜、金、银和铝。

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The materials from e-waste include iron, copper, gold, silver, and aluminum materials that could be reused, resold, salvaged, or recycled.

电子垃圾中的材料包括铁、铜、金、银和铝，这些材料可以被重复利用、转售、废物利用或回收。

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The Stone Age, Bronze Age and Iron Age all came and went, but gold is forever.

石器时代，青铜时代，铁器时代都相继成为过往，而黄金却永存。

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Let's choose Latin, the language of scholarship, and so iron became Fe for ferrum and lead became Pb for plumbum and gold is Au for aurum and so on.

那就选拉丁文吧，用于学术的语言，所以，iron就变成了Fe，表示铁元素,铅变成了，Pb，表示铅元素,金变成了Au，表示金元素，等等。

麻省理工公开课 - 固态化学导论课程节选

Moreover, despite worthwhile coal, copper, gold and iron deposits, Chinese officials privately admit that the province's oil reserves, once thought to match those of Saudi Arabia, are small.

ECONOMIST: China��s rebellious province | The

With its proximity to Asia and mother lode of gold, oil, iron ore and coal, Australia has enjoyed uninterrupted growth for the past 13 years.

FORBES: Aussie Stock Guide

But there are also some big differences, such as the composition of their commodity exports: New Zealand's top exports are dairy, meat and forestry products, whereas Australia's top three are coal, iron ore and gold.

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