Contact details should have an auto-filled field that displays whenyou last talked to this person, this helps keep track of whetheryou’re in touch with your friends.

联系细节应该有一个自动填充信息段，显示上次你何时与这个人交谈，这对了解你是否同你的朋友有联系很有帮助。

youdao

Keep in touch with friends, acquaintances and, colleagues. And don't stop after your initial contact.

和朋友、熟人和同事保持联系。不要在初次联系后就不联系了。

youdao

I also said "Let's keep in touch again later", but I lost contact with her though.

那天我还对她说“以后我们保持联系”，尽管以后我们再也没有联系。

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One in three youngsters added that they use phones to keep in touch with people their parents did not want them to contact.

BBC: NEWS | Business | Youngsters 'reliant on mobiles'

"They're no longer going to be centrally located and easy to contact and stay in touch with and keep involved, " Sanders said of college voters.

CNN: Iowa students could sway caucuses, if they show up