They still hold gold and right now the Federal Reserve System has about eleven billion dollars of gold.

他们仍然持有金子,并且现在，联邦储备系统拥有价值,一百一十亿美元的金子。

耶鲁公开课 - 金融市场课程节选

The question is what it means to say something is backed by something because well you could say it's backed by gold because the Fed has eleven billion dollars of gold.

问题在于，说某个东西被另一个东西支持,意味着，你可以说,货币被金子支持着,因为美联储有一百一十亿美元的金子。

耶鲁公开课 - 金融市场课程节选