有些石头重达二十六吨！
54000：白银从美洲运到欧洲的数量从十六世纪的17000吨增加到十八世纪54000吨。
Tons of silver shipped from the Americas to Europe in the 1700s, up from 17, 000 tons in the 1500s.
54000：白银从美洲运到欧洲的数量从十六世纪的17000吨增加到十八世纪54000吨。
Tons of silver shipped from the Americas to Europe in the 1700s, up from 17, 000 tons in the 1500s.
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