Phrase

postal service

/ˈpəʊstəl ˈsɜːvɪs/

noun

邮政服务；邮政系统

A national or private organization that collects and delivers mail.

1.
A national or privatized organization responsible for the circulation and distribution of mail.
负责邮件流通和投递的国家或私有化组织
2.
Synonym of post office.
邮局的同义词

邮局；负责邮件流通和投递的国家或私有化组织；邮局的同义词；邮电业; 邮政

In use

I sent the package via the postal service yesterday.

我昨天通过邮政服务寄出了包裹。

The postal service in this area is very reliable.

这个地区的邮政服务非常可靠。

Many businesses rely on the postal service for delivering orders.

许多企业依赖邮政服务来递送订单。

I usually use the postal service to send packages.

我通常使用邮政服务寄包裹。

You can send documents via postal service.

你可以通过邮政服务寄送文件。

The postal service delivers mail every day except Sunday.

mail service: 邮件服务 · postal service 指整个邮政系统（包括包裹、信件、电报等），而 mail service 仅指邮件（信件、小包）的寄送，范围较窄。
post office: 邮局 · postal service 是抽象的行业或服务机构，post office 是具体的营业场所。
courier service: 快递服务 · courier service 通常指私人的、门到门的快速递送，postal service 则多为国家经营的、覆盖面广的普通邮政。

页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。

Dictionary facts from ECDICT, WIKTIONARY.