All channels of communication need to be kept open.

所有沟通渠道都得保持畅通无阻。

《牛津词典》

We should let the staff know the channels of communication, you know, who they can contact or direct questions to about these changes.

我们应该让员工知道沟通的渠道，例如他们可以联系谁，或者直接向谁提出关于这些变化的问题。

youdao

Right now, there're so many new channels of communication coming up.

现在，有很多的交流方式在出现。

youdao

The multi-lateral route is the way to go." Unlike Spain and several other concerned countries, the United States has not recalled its ambassador from Tegucigalpa, stressing the need to keep channels of communication open with the Honduran people.

VOA: standard.2009.07.01

The media represents channels of communication that can reach millions of people across the nation.

CNN: Understanding The Role of the Media

Exchanges were once on a local scale, community-based, and in an immediate environment with traditional channels of communication.

UNESCO: Radio for Children

The two Koreas continue to have at least two working channels of communication between their militaries and aviation authorities.

NPR: SKorea, US Begin Drills As NKorea Threatens War