life service.

According to Baidu Encyclopedia, life service refers to all kinds of services provided to meet the daily needs of urban and rural residents, including cultural and sports services, education and medical services, tourism and entertainment services, catering and accommodation services, residents' daily services and other services. Property outsourcing service fees belong to life services.

invoices refer to business vouchers issued and collected by all units and individuals in the course of buying and selling commodities, providing or receiving services and engaging in other business activities.