水底电缆

例句：

1. 1. The underwater cable is crucial for communication between thetwo countries.
   水下电缆对于两国之间的通信至关重要。
2. 2. The submarine cable connectsthe mainland to the island.
   海底电缆将大陆与岛屿连接起来。
3. 3. Theunderwater cable carries datafrom one country to another.
   水下电缆传输数据从一个国家到另一个国家。