Just need refers to the most basic needs that people must meet in life, such as food, housing, education and so on. Non-just-needed refers to people's consumption needs beyond meeting their basic needs, such as tourism, entertainment and culture.

Wedding service and management mainly learn professional skills such as wedding service, marriage registration service and conference management. Familiar with marriage policies and regulations, understand the customs and cultures of different regions and nationalities, master professional skills such as wedding celebration service, marriage registration service, marriage introduction service, marriage and family consultation service, and have practical skills and planning and marketing ability in wedding service.