We now keep in touch with him by writing letters.

我们现在靠写信与他保持联系。

youdao

He kept on ringing me up, but I don't want to keep in touch with him any more.

他不断地给我打电话，可我不想和他保持联系了。

youdao

If someone always have question about you, you will feel hard to keep in touch with him, you may feel it hard to make friends with them.

如果一个人对你总是存在疑虑，你会觉得和他保持联系很困难，很难和这样的人交朋友。

youdao

John Major, Mr Blair's Tory predecessor, had relied on a handful of civil servants to prepare his papers and run his diary, and a small Policy Unit to keep him in touch with policy developments in Whitehall.

ECONOMIST: The cafeti��re theory of government