No formula can be used to calculate your devotion;no poems and songs to express our heartfelt gratitude to you.Itis you that cultivate our minds with your extensive knowledge and your noble spirits.On this special occasion，please accept our best wishes!加減乘除，算不出您作出的奉獻!詩詞歌賦頌不完對您的崇敬!您用知識的甘露，澆開我們理想的花朵，在這不尋常的時刻，請接受我深深的祝福!

　　Running water in a hurry， the years in a hurry， only our friendship is always in my heart. Friends， goodbye! Friends，treasure!流水匆匆，歲月匆匆，唯有友情永存心中。朋友，再見!朋友，珍重!

　　Oh，my friend，do you like stars?If you feel lonely far away from home，look up at the stars in the sky， where there is a star for luck that Ive sent you.朋友，你喜歡星空嗎?如果有一天你在遠方流浪時感到孤獨、憂郁，請?zhí)ь^看看星空，那兒有我送給你的幸運星。

　　Life is a profound book.Other#39;s notes cannot replace your own understanding.May you find and create something new in it.生活是一本精深的書，別人的注釋代替不了自己的理解。愿你有所發(fā)現，有所創(chuàng)造。