美国邮政数字化

delivery – n. the act of taking something to a person or place

relevant – adj. relating to something in a useful way

customer – n. someone who purchases a product or service

consumer – n. person who buys goods and services

virtual – adj. existing or occurring on computers or on the internet

check – n. a written order informing a bank to pay an amount of money to a named person

grandkid – n. a grandchild

augmented reality – n. an enhanced version of reality using technology to add digital information on an image of something

scan – n. the act or process of using a special machine to see the inside of something