In the afternoon, the sun was shining brightly. I looked at the completely green trees on the other side of the road. I felt an inexplicable excitement in my heart, as if I was embarking on a long journey with an uninhabited mountain range ahead. With deep footprints one by one, we are trudging through the mud of life after graduation. What we once expected, had and lost on campus has become a story but lingers on. If there were no encounters and mutual acquaintances on campus, if there were no excursions in the white winter snow on the playground, if there were no shyness that couldn't help but look back at the campus trails, if there were no reluctant farewells in the rain when graduation, there would be no more bright sunshine in the sky of life!