On September 12th, 2021, all members of the biological separation and interface molecular mechanism research group and some family members went to Dalian Changxing Island beach for an outing and celebrated Chinese Teacher's Day. Through this activity, everyone enhanced mutual understanding and exchanged scientific research experience. Thanks to Sun Wenjing, Wang Dongdong and other students for their meticulous organization! Wish our research team thrive! I wish you all progress and happiness every day!