VOA慢速英语:Chicago Working to Reduce Gun Violence(翻译)

gang - n. a group of criminals

potential - adj. capable of becoming real

pass - n. let people go on without penalty

faith - n. religious beliefs

root - v. to express or show support for someone

credibility - n. the quality of being believed or accepted as true, real, or honest

epidemiology - n. the study of how disease spreads and can be controlled