Runde's full-time face-to-face teaching is just a course, excluding other services. High-end protocol classes include online classes, face-to-face lectures at core test sites, problem analysis, summer training camps, closed-door brushing classes, face-to-face lectures and intensive reading classes. Similar to a family fight, full-time face-to-face teaching is similar to a single meal. I think the whole process of face-to-face teaching is that the second stage is gone, and high-end words include all stages of learning, from the beginning to the end.