overhead-under ground network

例句：

1. 1. The overhead network is essential for communication between different buildings.
   高空网络对于不同建筑之间的通信至关重要。
2. 2. The underground network provides a reliable and fast connection to the internet.
   地下网络提供了可靠的快速连接互联网。
3. 3. The overhead and under ground networks are interconnected, allowing for seamless communication between them.
   架空和地面网络相互连接，使得它们之间能够无缝沟通。