The explanation is so good that I understand and remember the lecture content. In the past, when I watched a certification lecture, they were often stuck in old knowledge and explained with examples that did not fit the current trend, so I did not have high expectations for this certification lecture. However, the professor explained it with examples that fit the latest trend and were easy to understand, so it was great. My prejudice about certification lectures was also broken. I hope you will continue to give good lectures in the future.