Well, if they'd used the postal system...

如果他们利用邮政系统。

Even though some of them were handled, jostled and moved through the postal system.

尽管一些炸弹包裹经过了邮政系统的处理、挤压和移动。

And Donald Trump was casting doubts about the integrity of the postal voting system.

唐纳德·特朗普对邮政投票系统的公正性提出了质疑。

Originally relying on the postal system, distance learning now uses the computer, satellite and the Internet.

早期的远程学习借助于邮政系统，现在使用的是计算机、卫星和互联网。

It is not, however, a sign that they're getting serious about transforming the postal system for the 21st century.

他们并非要决心改变邮政系统以适应21世纪的变革。

This is the Bible, the Quran, the seminal document of postal systems worldwide.

这是圣经，古兰经，全球邮政系统的开创性文件。

So, this as a verb means to put something into the postal system.

因此，作为动词，这意味着将某些东西放入邮政系统。

He kept the corners of the  empire in touch by establishing a postal system.

他通过建立邮政系统保持帝国各个角落的联系。

Swiss hospitals, the Swiss postal system, Swiss banks, Swiss firefighters, Swiss Ambulances, and most tellingly their official currency is the Swiss Franc.

瑞士医院、瑞士邮政系统、瑞士银行、瑞士消防员、瑞士救护车，最引人注目的是他们的官方货币是瑞士法郎。

They also developed a postal system where messengers or couriers on horseback could carry messages and packages, with stations along the route for rest, food, and changing your horse, a concept first developed by the Persians.

他们还开发了一种邮政系统，骑在马背上的信使或快递员可以携带信息和包裹，沿途设有休息站、食物站和换马站，这是波斯人首先提出的概念。

It's a lot like sending physical mail through the postal system – every letter needs a unique and legible address written on it, and there are limits to the size and weight of packages.

这很像通过邮政系统发送实体邮件——每封信都需要一个独特且清晰的地址，并且对包裹的大小和重量有限制。