VOA慢速英语:Tracking Santa with Technology

magic - n. a very pleasant, attractive, or exciting quality

naughty - adj. behaving badly — used especially to describe a child who does not behave properly or obey a parent, teacher, etc.

personal - adj. belonging or relating to a particular person

aerospace - n. n industry that deals with travel in and above the Earth's atmosphere and with the production of vehicles used in such travel​

app – n. computers : a computer program that performs a particular task

tradition - n. a way of thinking, behaving, or doing something that has been used by the people in a particular group, family, society, etc., for a long time

scold - v. to speak in an angry or critical way to (someone who has done something wrong)

elf - n. a small creature in stories usually with pointed ears and magical powers

plump - adj. having a full, rounded shape

cookie - n. a sweet baked food that is usually small, flat, and round and is made from flour and sugar

candy - n. a sweet food made with sugar or chocolate