communication network

汉语翻译

例句：

1. Thefirst telephone was the precursor of modern communications networks.
   最早出现的电话是现代通讯网的雏型。
2. Mindful of the need to maintain efficient communication, the board of directors decided to construct a new communication network.
   董事会注意到维持有效通讯的需要，因此决定建立一个新的通信网。