reserve currency
US /rɪˈzɜːrv ˌkɜːr.ən.si/
UK /rɪˈzɜːrv ˌkɜːr.ən.si/
1.
储备货币
a foreign currency held by central banks and other monetary authorities as a means of payment or to support their domestic currency
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The US dollar has long been the world's primary reserve currency.
美元长期以来一直是世界主要的储备货币。
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Some countries are advocating for a new global reserve currency to reduce reliance on the dollar.
一些国家正在倡导一种新的全球储备货币，以减少对美元的依赖。