a system of international trade in which there are no limits or taxes on imports and exports自由贸易（制度）
a free trade agreement/area自由贸易协议╱地区
CultureAfter the end of the Corn Laws in the 19th century, Britain was in favour of free trade, but during the Great Depression there were special charges on imports to protect local industry. In the second half of the 20th century Britain joined free-trade organizations such as EFTA, (the European Free Trade Association) and the European Union.During its history, the US has generally tried to protect its industries with charges on imports. Since the First World War, however, it has supported free trade. In 1994 it began operating NAFTA with Canada and Mexico and this was replaced in 2018 with the United States–Mexico–Canada Agreement (USMCA).
Collocations International relationsInternational relations国际关系Trade贸易
facilitate/regulate trade (with other countries)促进／规范（与其他国家的）贸易
form/join a trading bloc建立／加入贸易同盟
live in/compete in a global/the world economy生存于全球／世界经济中；参与全球／世界经济竞争