A learning experience through studies in photochemistry

Initially, the article was written for the benefit of Prof. Liu’s students, but later a few close friends of his also received copies of the paper. I was one of the early ones who received such a copy. I thought the paper contains useful instructional values to the Chinese students in general and encouraged Prof. Liu to modify the paper for its publication in a Chinese journal. The current article you see here is the final product. We are grateful to the editors for their willingness to consider simultaneous usage of both English and Chinese, which is an important part of this paper. I hope the readers will enjoy reading the article just as much as I did.