Mercosur
/ˈmɜːkəʊsuːə(r), 〈西〉 merkoˈsur/- a customs union between Argentina, Brazil, Paraguay, and Uruguay, which came into effect in January 1995. Bolivia and Chile joined as associate members in 1996.南方共同市场（阿根廷、巴西、巴拉圭和乌拉圭组成的关税同盟, 1995年1月生效, 1996年玻利维亚和智利作为准会员加入）。
词源
from elements of South American Spanish mercado común del cono sur 'Southern Cone Common Market' or mercado común del sur 'Southern Common Market'.