上币，读音shang bi，汉语词语，指上等的货币。
1979年至1981年间，美国共铸造了约8.57亿美元的银色“苏珊·安东尼”币，但这种硬币并不受欢迎，因为它看起来和感觉上都太像25美分硬币了。
The United States minted about 857 million silver-colored "Susan Anthony" dollars between 1979 and 1981, but the coin proved unpopular because it looked and felt too much like a quarter.
实际上，比特币已经创立了自己的私人金本位世界，其中货币供应是固定的，不受货币印刷量增加的影响。
In effect, Bitcoin has created its own private gold standard world, in which the money supply is fixed rather than subject to increase via the printing press.
其原因就是一旦在美国开设人民币账户，国际上对人民币的需求将会增加，人民币汇率也会随之上升。
Why? Because if everyone opens up yuan bank accounts, that could increase demand for the currency and push the exchange rate up.
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