你愿意用邮件与我保持联系吗？

Would you please keep in contact with me by email?

与债务人至今保持联系否？

Did you keep in contact with the buyer?

你和你大学里的朋友还保持联系吗？

Have you kept in contact with any of your friends from college?

他们互相拥抱，许诺将保持联系。

They embraced and promised to keep in touch.

谢谢给我们介绍你们的产品，我们将会保持联系。

Thanks for showing us your products ─ we'll be in touch.

最要紧的是保持联系。

Above all, keep in touch.

几年来，我一直和她保持联系。

For several years I kept in touch with her.

她仍旧很愿意保持联系。

She's still keen to keep in touch

尽管我们以多种方式保持联系，见面对我们来说还是非常重要的。

It is important for us to meet personally although we have been in touch in various ways.