其實可以用虛擬貨幣來代替什麽金，銀。這樣省去了開采，冶煉，儲藏，運輸的大筆費用。

來源: chufang 於 2022-03-04 08:34:18 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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