free exchange operation

例句：

1. 1. The company's free exchange operation has significantly improved itsefficiency.
   该公司的自由交换操作显著提高了其效率。
2. 2.The free exchange operation is a crucial partof the global trade system.
   自由交换操作是全球贸易体系的重要组成部分。
3. 3. The freeexchange operation allows for theseamless flow of goods and servicesacross borders.
   自由交换操作允许货物和服务在国界之间无缝流动。