Teaching and learning learn from each other, that is, preaching is both education and learning. Learn from each other, learn from each other, and promote the growth of knowledge and * * *. To sum up, educators and educatees inspire and promote each other in teaching activities, * * * increase knowledge and * * * grow together.

Among them, it reveals a truth that it is not always educators who let learners increase their knowledge. The information fed back by the educated's study and appreciation is also touching the educators, promoting and enlightening them, and increasing their knowledge and experience. In a word, both educators and educatees grow up in knowledge and growth.