fixed shipping line

例句：

1. 1.The company's fixed shipping line iscrucial for its international trade operations.
   该公司的固定船运线对其国际贸易运营至关重要。
2. 2. Theship's fixed shipping line was disrupted by a storm.
   船只的固定船运线因暴风雨而中断。
3. 3. The new routewill improve the efficiency of the company's fixed shipping line.
   新路线将提高公司固定船运线的工作效率。