Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
automation – n. the control of something using machines and not people
exposure – n. situation in which someone is affected by something because they are in a particular place or situation
artificial intelligence – n. ability of a machine to use and analyze data in an attempt to reproduce human behavior
significant – adj. important
greet – v. welcome someone
blue-collar – adj. relating to jobs that require physical work
