元朝以后，黄金的货币作用消失。

After the Yuan Dynasty, gold wasn't regarded as money.

youdao

货币起了很重要的作用，因为现在美元的币值太低了。

[Currency plays] a very big role because the dollar is so low right now.

youdao

1990年代，日本和欧洲曾试图削弱美元的突出地位，并提高其各自货币的作用。

During the 1990s, Japan and Europe tried to reduce the prominence of the dollar and to boost the use of their respective currencies.

youdao

It was supposed to maintain the convertibility of the currency into gold.

它的作用在于保持,货币与金子间的转换。

耶鲁公开课 - 金融市场课程节选