Today, we invite Professor Yu-Liang Guo from the Institute of Environmental Health Sciences of National Taiwan University to share with our teachers how innovative and practical his academic research is. Professor Guo has rich research and teaching experience. It is a great honor to learn from Professor Guo. How to innovate The teaching mode and stimulating students’ learning motivation are the direction that our teachers have been working hard for. It is really a rare opportunity to hear Professor Guo’s sharing today and learn from the experience of his predecessors.