VOA慢速英语:Report Shows Deaths by Selfie on the Rise(翻译)

characteristic - n. typical of a person, thing, or group : showing the special qualities or traits of a person, thing, or group

narcissistic - adj. loving and admiring yourself and especially your appearance too much

tendency - n. a quality that makes something likely to happen or that makes someone likely to think or behave in a particular way

incident - n. an unexpected and usually unpleasant thing that happens