Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
engage – v. to get and keep someone's attention, interest, etc.
automate – v. to use machines and computers instead of people to do work
artificial intelligence – n. the power of a machine to copy intelligent human behavior
retail – n. the activity of selling products to the public in shops and on the internet
sensor – n.
isolate – v. to put or keep (someone or something) in a place or situation that is separate from others
therapy – n. treatment for a physical or psychological condition
stimulation – n. the act of making some feel interested and excited
infer – v. to guess that something is true because of information that you have
