On December 26, Professor Yongqin Lv from Beijing University of Chemical Technology came to our group for a communication and gave a report entitled "Highly selective biomimetic molecular recognition machine and its application in biological enzyme catalysis and biological separation" . Four professors Zongbao Zhao, Lihua Zhang, Kaiguang Yang, Junjie Ou and many other teachers and students from Department of the Biotechnology attended this academic report. (Text by Min Ye, Image by Yunxia Li)