In Spring of 2021, we gradually resumed more and more face-to-face classes, for example, the Tier 2 Classes of ‘Scientific Training and Mentoring for STEM Talents‘ in Life Sciences, which were scheduled on 27 March, 10, 17, 24 April and 8 May, were completely back to normal (where the Tier 1 Classes were still conducted online). I had the pleasure to offer a practical workshop and a class for data analytics together with a computer laboratory. In my humble opinion, it is going to be highly useful for students interested in research.