On Oct 17-21, Gan and Shizhen first attended the Annual Meeting on Environmental Analytical Chemistry held in 镇江Zhengjiang, then paid academic visits  to 江南大学宜兴校区Jiangnan-U@Yi Xin and 南京大学Nanjin-U. We met many ‘old’ friends on the meeting, and delivered lectures in the two universities. Professors 何锋He Feng of JNU and 钟寰 of NJU were our hosts, respectively.  Gan also met his senior brother 季俊峰Ji Junfeng during his BSc-MSc study in NJU, who showed us the School of Geosciences at the night.  It is a very memorable academic trip!