(idiom) let’s keep in contact even though we’re parting
Example Sentence:
I’m going back to Brazil and you’re going back to Italy. Here is my e-mail address, please keep in touch!
Student 1: I am going back to Brazil.
Student 2: I am going back to Korea.
Student 1: Good luck to you! I hope we will meet again soon!
Student 2: Keep in touch!
Have fun on your vacation! I hope you enjoy Mexico! Keep in touch!
From the Blogs:
Cell Phone Directories Help You Keep in Touch
Media: