extra-service中文什么意思

额外服务

• extra:    adj. 1.额外的，附加的，补充的 ...
• service:    n. 1.服务；工作；公务；职务；事 ...
• extra service:    额外服务

例句与用法

1. The gsm network has grown up from the development of these years . how to take full use of gsm resource , how to develop its advantage of wide covering , plenty of users , and how to develop extra - service have attracted more and more service - provider
   Gsm网络经过多年的发展，已经比较成熟，如何充分利用现有的gsm网络资源，发挥其网络覆盖率高、用户数量大等优势，开展多种增值业务，越来越为gsm网络运营商所重视。