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

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

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。

youdao

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