Fred Smith, the founder of Federal Express, served in the marines during the Vietnam war.

联邦快递（Federal Express）的创始人弗里德·史密斯（Fred Smith）曾在越战时期参军。

And United Parcel Service delivery costs about the same as a Federal Express.

而联合包裹服务的送货费用与联邦快递大致相同。

And both Federal Express and UPS are very popular because people want to make sure that their letter arrives.

联邦快递和 UPS 都非常受欢迎，因为人们希望确保他们的信件能够送达。

Most people just call them " FedEx, " that stands for Federal Express, and that's a private company that delivers packages all over the world, really.

大多数人只是称他们为“联邦快递” ，代表联邦快递，这是一家在世界各地运送包裹的私营公司， 真的。