金属货币;

And then in the seventh century we had money in the fomp 3 of precious metal.
另外在七世纪时出现了贵重金属货币.
来源:网络文摘精选Because large sum of metal money is heave and inconvenient to handle, government issue paper money.
因为大量金属货币使用起来笨重不方便,政府便发行了纸币。
来源:互联网摘选Perhaps the most obvious place for investors to put money now is in the yellow metal.
目前,对投资者来说,最显而易见的避风港也许就是黄金。
来源:互联网摘选微语录 · 爱情句子
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