Test whether you and your friend are life-and-death friends or fair-weather friends?
In ancient times, I could only write to you without knowing where we would meet next time. And when the green water was drunk at the foot of the green mountain, we just held each other's fists and knew that we would meet again in the future.
In ancient times, one had to write many poems to become a Taoist priest in Mount Laoshan, pass through the wall, pass through the air, and then pass through ...