Mr. Li is one of my beloved teachers.

　He taught us physics when we were in Senior One. He was old but he taught very well. He could make his class lively and interesting. Mr.Li made good preparations for his lessons and was strict with us,too. I used to be poor in physics. Mr.Li helped me with my lessons very patiently.

这句话的意思是向自己的老师表达一种敬爱的心情。老师是人类与工程灵魂的教师。所以说每个老师都是值得让人尊重的，因为他能够带给我们知识，教会我们怎么认知这个世界，这对我们的人生是极为重要的，如果一生中能够遇到一个好的老师，那是无比的幸福。