shell money造句

although such history was longer than that of shell money, it always took place in the parcel area of slow economic development
以盐为币的历史，其下限虽比贝币漫长，但它始终发生于经济发展相对较落后的局部地区，并非全省性市场上充当商品的媒介。
it was not until primitive currencies, such as shell money and copper pieces came along that business started to thrive and prosper . in fact, stamp and currency are natural outcomes of social development
等古代货币的相继出现和广泛使用，商业买卖亦开始活跃起来，因此，货币的出现对人类社会经济的发展可说影响深远。
It's difficult to find shell money in a sentence. 用shell money造句挺难的