为什么说是铜臭味，而不是金臭味或者银臭味？

Group 1 - The article discusses the historical significance of copper as a currency in China, highlighting its early use and the cultural implications associated with it [1][3] - Copper was once considered a valuable currency in ancient China, especially during the Song, Yuan, and Ming dynasties, where it was in high demand both domestically and internationally [3][5] - The term "copper smell" refers to the negative connotation associated with greed and lack of morals, which has historically been linked to the pursuit of wealth [3][7] Group 2 - The article explains the impact of the Ottoman Empire's rise on European trade routes, leading to a shift towards maritime exploration by countries like Portugal and Spain [5][11] - European nations faced a silver shortage in the 15th century, prompting them to resort to using copper coins for trade, which further intensified the demand for Chinese copper currency [5][11] - The influx of silver from the Americas, particularly from mines like Potosí, significantly altered the European economy, alleviating the silver shortage and establishing Spain as a dominant power [11][13]