尽管中央帝国通常非常富有和人口稠密，它本质上是很脆弱的，因为新的国际贸易路线的发展可能会破坏货币基础和侵蚀国家权力。
The central state, though often very rich and very populous, was intrinsically fragile, since the development of new international trade routes could undermine the monetary base and erode state power.
虽然从影响力上，这些虚拟货币暂时没有Q币这么泛化，但其本质是相同的。
Although not yet as influential as the Q-coin, these virtual currencies all share the same characteristics.
从本质上说，一个国家的货币供应就是现金——特殊货币——和银行存款之和。
Essentially, the nation's money supply is cash - the special money - plus bank deposits.
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