postal franking machine

例句：

1. 1.The postal franking machine is a device that automatically adds value to the value of stamps.
   邮资自动加值机是一种自动为邮票价值增加的机器。
2. 2. The postal franking machine has made it easier for people to send letters and parcels without having to pay additional fees.
   邮资自动加值机使得人们无需支付额外费用就能发送信件和包裹，变得更加便捷。
3. 3. The postal franking machine has become increasingly popular in recent years, as more andmore people use it to send their mail overseas.
   邮资自动加值机近年来越来越受欢迎，因为越来越多的人使用它来寄送他们的国际邮件。