vital communication line

• 交通要道

vital communication line的用法和样例：

例句

1. This is an important line of communication.
   这是一条交通要道。
2. The causeway of Yangkou Port which connects the seafront industrial park and the man-made island is an important carrier for the transshipment and communication of materials.
   洋口港陆岛跨海通道工程，是洋口港码头人工岛区和洋口港临港工业区的交通要道，是洋口港各类物资和人员交通往来的重要载体，是整个洋口港各类项目建设及运行的重要平台。