Conduct training. The difference between implementation and execution, literally, "going" pays attention to the process, meeting and competition. And "development" is biased towards large-scale activities, such as holding exhibitions, academic lectures, training courses and so on. , so training is needed. Engage in certain activities: discussion, work, education and criticism. Meetings are "ongoing" and are always used for continuous, formal and serious behavior. Development means meetings, competitions, training and so on.