许多人认为高中阶段是人生的黄金阶段，高中阶段会流下很多美好的记忆，请你以约120个词以“Leave School Wit

One possible version：
Actually high school is the most memorable and the best time in one’s life.
Once I participated a 1,500-meter-race in the sports meeting held by our school—an extremely challenge that could scare many other students. During the race, the sun was shinning. Never had I gone through such a hard time! I gradually felt dizzy and even wanted to quit. However, running with me and delivering me some salt water, my classmates were constantly shouting “Keeping going! Success is always ahead of you!”. It was their constant support and encouragement that gave me the power to continue. No sooner did I reach the final line that all my classmates rushed to me and held me in their arms. Exhausted as I was, I felt my effort paid off. The friendship I gained was the most precious.
As a Senior Three students, I fully understand that the rest time of high school is limited. I’ve decided to plant a tree with my classmates on the hill at the back of our school campus. Not only can it add more green to our school, but also it will remind us of the unforgettable days that we spent together. What’s more, we can take it as a symbol of the permanent friendship between our classmates.

略