Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
sensor - n. a device that detects or senses heat, light, sound, motion and then reacts to it in a particular way
commercially – adj. involved with or related to the buying and selling of goods and services
virtual reality - n. an artificial world of images and sounds created by a computer that is affected by the actions of a person who is experiencing it
augment - v. to add something to (something) in order to improve or complete it
simulation - n. something that is made to look, feel, or behave like something else especially so that it can be studied or used to train people
biodata - n. biographical information taken from questions about life and work experiences, as well as items involving opinions, values, beliefs, and attitudes
