By the middle of the sixteenth century, financiers and traders commonly accepted bills of exchange in place of gold or silver for other goods.
到了16世纪中叶,金融家和商人普遍接受汇票来代替黄金或白银进行商品交换。
A century ago almost all the world's currencies were linked to gold and most of the rest to silver.
一个世纪以前,世界上几乎所有的货币都和黄金关联,其余的大部分和白银关联。
Before the early nineteenth century, books were hand-bound using heavy materials such as wood, leather, gold, silver and jewels.
十九世纪早期以前,书籍都是使用笨重的材料,如木头、皮革、金、银和宝石等手工装订而成的。
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