They did not stop until they came to the Pacific Ocean, and wherever they went, the United States Mail went too.

他们勇往直前来到太平洋，他们到哪里，美国邮政就到哪里。

The FBI is also involved in " mail fraud" cases, where people are using the United States mail system to lie and steal, usually money, from other people.

FBI 还参与了“邮件欺诈” 案件，人们利用美国邮件系统撒谎并从他人那里窃取（通常是金钱）。