We are in regular communication by letter.

我们定期通信联系。

《牛津词典》

Discuss expectations for regular communication at the beginning of the project so everyone will be comfortable with the frequency of interactions.

在工作刚开始的时候讨论定期沟通的时间，以便每个相关的人都会感到满意。

youdao

Establishing a reliable monitoring and evaluation system with regular communication between the central and peripheral levels of the health system is vital.

建立可靠的监测和评价制度，并在中央和地方一级的卫生系统之间实行定期交流，具有至关重要的意义。

youdao

And just as at the regular Olympics, communication among participants from different countries can be an issue at the games.

VOA: standard.2009.09.10

We are obviously monitoring this very closely and we are in regular communication with our European counterparts.

WHITEHOUSE: Press Briefing

The report stressed the importance of regular communication between US President Barack Obama and Brazilian President Dilma Rousseff.

FORBES: Council on Foreign Relations to US: Move Closer to Brazil

We have extreme and regular communication at the level of the Secretary of the Treasury and Treasury Department officials with their counterparts.

WHITEHOUSE: Press Briefing