Dialog 1 drop someone a line [ 連絡する ]

Angela:It's time to head back to Borneo! It's been great living in Japan!
Yukio:Farewell and take good care of yourself! Maybe we can see each other again sometime.
Angela:Hey, if you're ever in Borneo drop me a line! You can come play with my pet orangutan!
Yukio:Uh… yeah, sounds great! Well, take care! Bye-bye!

Dialog 2 before long [ 間もなく ]

Yukio:Great news! Nisuzuta Company has just developed a car with super magnets!
Angela:Really, what do they do?
Yukio:They prevent cars from touching one another.
Angela:What's so great about that?
Yukio:Don't you see? Before long, cars crashing into each other will be a thing of the past!