I feel grateful to offer ‘CUSA3003 Biological Science Student Knowledge Enhancement Course‘ this summer. It was a long course lasting for four days on 18, 21, 25, and 28 July, where 17 students with great potential had completed. I would like thank the ‘invited lecturers‘ for their useful sharing of their knowledge and experience with the students. I am sorry that I was ill during the two weeks, and my voice was terrible on some days. I hope I can stay health to offer this long course again in the summer of 2020.