Data also flows through a huge collection of underground cables.

数据也通过大量的地下电缆传输。

A huge network of underground cables connected every box in the city to the central alarm center.

一个巨大的地下电缆网络将城市中的每个盒子连接到中央报警中心。

Nearly half of the world's population does not have access to the internet, because most internet options require an extensive track of costly underground cables, leaving many rural locations offline.

世界上将近一半的人口无法访问互联网，因为大多数互联网选项都需要大量昂贵的地下电缆， 导致许多农村地区无法上网。