上门服务的英文：
door to door service

参考例句：

Our shop provides home-delivery service for the old, weak, sick, disabled and the pregnant.
对老、弱、病、残、孕，本店提供送货上门服务。

door是什么意思：
n. 门，门户；途径

The door was unclosed.
门被人打开了。

This door is manual.
这个门是要用手操作的。

Who is knocking the door || Who is knocking || Who is at the door || Who is knocking at the door?
谁在敲门

Who is knocking the door / Who is knocking / Who is at the door / Who is knocking at the door?
谁在敲门

The enumerators went door to door to collect detailed information.
调查员挨家挨户收集详细信息。

service是什么意思：
n. 公共服务系统；公共事业机构；政府机构；帮助，效劳
v. 检修，维修；为…提供服务

overhand service
高手发球

take service with
在￥帮佣

express goods service
特快货运业务

We need to have the car serviced.
我们得把车送去检修一下了。

to service treasury Bonds
支付国债利息