Surface mail意思

"Surface mail" is a term used to describe a type of postal service that uses ground transportation rather than airmail for international deliveries. It is typically a less expensive option than airmail, but it is also slower. Surface mail can include packages, letters, and other types of mail that are sent by land or sea.

The term "surface mail" is most commonly used in the context of international mail services, where it is an alternative to airmail. When sending mail internationally, the sender may choose between airmail (which is faster but more expensive) and surface mail (which is slower but cheaper) depending on the urgency of the delivery and the budget.

It's worth noting that with the advent of faster and more reliable international shipping methods, such as express courier services and improved postal services, surface mail has become less common. However, it is still an option for those who are looking for a cost-effective way to send items internationally and are not concerned about a long delivery time.