foreign trade monopoly

例句：

1. 1.The government's foreign trade monopoly has been a major factor in its economic success.
   政府的外国贸易垄断一直是其经济成功的主要因素。
2. 2.The company's foreign trade monopoly has made it difficult for other companies to enter the market.
   该公司的外国贸易垄断使得其他公司难以进入市场。
3. 3.The foreign trade monopoly has been a source of controversy and debate among economists and policymakers.
   外国贸易垄断一直是经济学家和政策制定者之间争议和辩论的一个来源。