People often say that you can't leave the hospital at once, because cosmetic surgery needs regular check-ups to maintain long-term results. * The wind swept across the water, leaving ripples; Sunlight passes through the clouds, leaving warm traces; Camels walk through the desert, leaving deep footprints; Whistle pigeons fly across the sky, leaving a joyful sound; Years pass through the Woods, leaving rings. Ah, my friend, what have we left from the stage of the times?