"Oncology clinician Chu Luting & rural branch secretary Gu Wu"
In the beginning, he met her for the first time.
Surrounded by fog, the street lights now have a protective umbrella. The fog has since been illuminated by street lights
At the end, she bids farewell to him.
From then on, the fog dissipated, the street lamp lost its protective umbrella, and the street lamp could no longer illuminate the fog.
Mist can no longer protect the people she wants to protect...
Purpose: Cherish the people in front of you