The gangster run into the bar and start shooting it up.
歹徒们冲进酒吧胡乱扫射一通。
A notorious gangster; a district notorious for vice.
臭名昭著的匪徒; 因恶行而闻名的地区
The gangster killed the only witness to his crime, on the principle that dead men tell no tales.
因为死人是不会告密的, 所以那歹徒把他犯罪的唯一见证人杀害了。