Money has a long history because early in our civilization people realized that we needed something to use for valuable trade. Babylonians in the 3000s B.C. used a “due bill” which was a clay stone with the items owed to a merchant listed on the clay. Roman soldiers used to b paid with lumps of salt today we occasionally say, “he is not worth his salt “ which is related to a Roman soldier who did not do a very good job. Surely we want goods and services that are “worth their salt”翻译一下呀

钱拥有悠久的历史，因为在我们的文明早期，人们就意识到需要某种东西用于有价值的交易。公元前3000年的巴比伦人使用过一种“帐单”，是一块泥石，上面列着所欠商人的物品。罗马士兵作为报酬常常得到的是一些块盐。现在我们时常说“他不值那把盐”，就是和一个不太称职的罗马士兵有关。可以确定的是，我们要的是“值这把盐”的货物和服务。