a service family的用法和样例：
- We're a service family and we're used to that, but it's different now. I don't feel there's a base any more.
- An address that usually tells a processor to use a service routine.
- To dedicate solemnly to a service or goal.
- Payment in return for something, such as a service.
- Is there a service charge for the checking account?
- I used to, but now I have got a service flat.