网络会议是基于局域网或Internet的实时的、交互的计算机应用系统，由于它具有低成本、少失误、可扩展等优点，已经被广泛应用于各个领域中。
　　四个特征命令：进入会议室/参加会议人员名单/发言内容/退出会议室(Network meeting is a real-time, interactive computer application system based on local area network or Internet. Because of its advantages of low cost, little error and extensibility, it has been widely used in various fields.
Four feature commands: enter the conference room / attend the meeting list / content / exit conference room.)