为了使有线电视运营商开展双向的数据服务，他们首先必须把单向的有线基础设施升级到双向。

为了使有线电视运营商开展双向的数据服务，他们首先必须把单向的有线基础设施升级到双向。的英文翻译

基本释义

• In order for cable operators to deploy two-way data services, they must first upgrade their wiring infrastructure from one-way to two-way.