Triangle trade is a general term, as long as it involves the trade between the three places, it can be called triangle trade. A typical example is->18th century North America; Caribbean->; The African route. The cargo ship set out from Boston, Massachusetts, loaded with liqueur, exchanged liqueur for slaves in Africa, and then returned to the slave market in the Caribbean for sale. The money is converted into syrup and raw sugar (the main raw materials for wine making) and processed into wine in Massachusetts, and then the next cycle begins. The British also developed Britain in the East. > India->; The China Triangle route transported British industrial products to India for opium and cotton, and exchanged opium and cotton for China's raw silk tea and porcelain for Europe. At that time, triangle trade was a highly profitable trade model.