You should keep in contact with him.

你应该与他保持联系。

youdao

With a cell phone, we were able to keep in contact with him wherever he was.

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Mrs Jones, her husband, and their four other sons keep in regular contact with him.

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When Alwaleed travels, an advance communications team sets up a private phone network and satellite link, putting him in contact with his office in Riyadh and letting him keep an eye on the Arab TV channels in which he owns a stake.

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