total volume of imports and exports

例句：

1. 1. The country's total trade volumehas increased significantly in recent years.
   该国近年来的进出口总值显著增长。
2. 2. The companyaims to expand its total trade volume by30% this year.
   该公司计划今年通过增加30%的进出口总值来扩大业务。
3. 3. Thetotal volume of importsand exports is a keyindicator of a country's economichealth.
   进出口总值是衡量一个国家经济健康的关键指标。