VOA慢速英语:Dubai Gets Its First Robot Cop

touch screen - n. a type of screen on a computer which shows options that you can choose by touching the screen

cop - n. police officer

tag - n. a small piece of cloth, paper, metal, etc., that is attached to something and that has information written on it

fantastic - adj. extremely good

maternity - adj. relating to the time when a woman gives birth to a baby

database - n. a collection of pieces of information that is organized and used on a computer

salute - v. to give a sign of respect to (a military officer, flag, etc.) by moving your right hand to your forehead

live-stream - v. transmit or receive live video and audio coverage of (an event) over the Internet