on-demand service

• 按需服务；点播业务

on-demand service的用法和样例：

例句

1. Select a service from the Main Menu.
   从主目录选择所需服务。
2. He was sentenced to time served, probation, community service, and ordered to make restitution and undergo counseling.
   凯文最终被判入狱，缓期执行，他需服务社区，归还窃款并接受心理辅导。