"If you don't know each other, you will remember each other again." Where does "cong" come from, what do you mean, comment and translation?

Interpretation of heart to heart: sincere intersection. Intersection: Surfaces intersect. Weight: indicates depth. Memory: miss, miss.

Friends are really superficial, and they must be missed the most in the future.

"If you don't know each other, you will remember each other again." "From: Tang Bai Juyi's" Two Injuries Return to Tang Qu "