VOA慢速英语:Cell Phone Use Among Friends? How Rude!

buzz - v. to make the low, continuous sound of a flying insect (such as a bee)

adult - n. a fully grown person or animal

focus - v. to direct your attention or effort at something specific

participate - v. to be involved with others in doing something : to take part in an activity or event with others

ignore - v. to do nothing about or in response to

antisocial - adj. not friendly to other people

motivate - v. to give (someone) a reason for doing something

explicit - adj. very clear and complete: leaving no doubt about the meaning

transit - n. the act of moving people or things from one place to another

survey - n. an activity in which many people are asked a question or a series of questions in order to gather information about what most people do or think about something

disengage - v. to stop being involved with a person or group

atmosphere - n. the particular way a place or situation makes you feel

etiquette - n. the rules indicating the proper and polite way to behave

infographic - n. a visual image such as a chart or diagram used to represent information or data.