求翻译：协助开展VPN群的售中工作。政企客户业务办理资料收集、处理；VPN群客户使用手册的优化调整；业务交付；政企VPN群用户的电信业务使用培训等。负责VPN群的价值提升，开展增量营销。开展VPN群的主动关怀维系。有计划的开展群协议到期续约工作；预警维系；节日关怀；其他有利于存量保持的关怀活动与日常服务。提供业务咨询、查询、帐务、故障处理等以及省市政企部门交办的其他工作。是什么意思？

Assist in the implementation of the cluster VPN work in sales. Government and Enterprise customers with business data collection, processing, VPN group of customers using the manual tuning; business; government and enterprise customers VPN training for the use of telecommunications services. VPN Gro

Assisting work VPN group sales. Government and enterprise customers business information collection, processing; VPN customers to use manual optimization adjustment; delivery; Government users of telecommunications services, such as training in the use of VPN group. VPN group responsible for the val