VOA慢速英语:互联网机器人帮忙预约新冠疫苗

appointment – n. a time set to meet someone or go somewhere

automatic – adj. something controlled using machines and not people

frustrate – v. make someone feel annoyed because things are not happening the way they want

resident – n. someone who lives in a particular place

savvy – adj. having practical knowledge and abilities relating to certain subjects

refresh – v. to make the most recent information on an internet website appear