VOA慢速英语2012.05.09 经济学, gold, something, currency, describes

Rebecca949

The best example of something is often called the "gold standard." It sets the standard against which other things are measured. 事物最好的范例通常被称作“黄金标准”（在经济学中翻译成金本位），它规定了其它事物的衡量标准。
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雨落风残

In economics, the term describes how major trading nations once use gold to set currency values and exchange rates.Many nations continue to use the gold standard until the last century.

liziming8292011

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jiaoyangrenshen

Big wheel is another way to describe an important person. A big wheel may be the head of a company, a political leader, a famous movie star. They are big wheels because they are powerful.Big wheel是另外一种描述重要人物的方式。Big wheel可能是公司负责人、政治领袖、或著名影星。他们是Big wheel，因为他们极具影响力。
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What they do affects many people. Big wheels give the orders. Other people carry them out. As in many machines, a big wheel makes the little wheels turn.他们的所作所为能够影响很多人。Big wheels下达命令，其他人则贯彻落实。就像在许多机器中大轮带动小轮转一样。