All of these factors seem to be trumped by the dollar's unique role as the world's reserve currency and provider of the most liquid markets.
美元同时是全球的储备货币和高流动性市场的流通货币，所有这些因素似乎都在这一独特角色前折腰。
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Since America is the world's largest economy, has the most liquid financial markets and operates the world's premier reserve currency, the Treasury bond has been seen as the global risk-free asset.