1.A group is a people-centered aggregation with a common goal or mission

2.The group is the product of scale after social division of labor. The common goal and mutual trust commitment make the group cohesive. However, with the social progress and the change of ideology, there will be certain conflicts between groups. It is the contradiction between cohesive force and conflict that promotes the continuous evolution and innovation of the group. Gender differences in the composition and development of the group Often plays an important role

3.When communicating between organizations, attention should be paid to language skills. The relevance of topics before and after is the key point to ensure the reasonable continuation of communication. The timeliness of information provided and topics discussed is the requirement of effective communication. Clarity and depth are the necessary elements in the whole communication process. Respect different views and reasonable differences